{"title":"Littelfuse KLDR Series Fuses","description":"\u003cp\u003eBrowse Littelfuse KLDR series Class CC time-delay fuses by exact model number.\u003c\/p\u003e","products":[{"product_id":"littelfuse-kldr-1-2-fuse","title":"Littelfuse KLDR1\/2 Class CC Fuse 0.5A 600VAC 300VDC Time-Delay","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-blue-2:#edf6fb;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px;}.nxs-industrial-product-page,.nxs-industrial-product-page 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(max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px 24px;}.nxs-industrial-product-page .section{padding:26px 17px 24px;margin:14px auto;border-radius:11px;}.nxs-industrial-product-page .section::before{width:4px;}.nxs-industrial-product-page .section h2{font-size:21px;margin-bottom:18px;}.nxs-industrial-product-page .section h2::before{width:20px;flex-basis:20px;}.nxs-industrial-product-page .spec-table{display:table;table-layout:fixed;}.nxs-industrial-product-page .spec-table td{padding:11px 9px;font-size:13px;line-height:1.55;overflow-wrap:anywhere;}.nxs-industrial-product-page .spec-table td:first-child{width:42%;}.nxs-industrial-product-page .features{grid-template-columns:1fr;gap:12px;}.nxs-industrial-product-page .card{padding:18px 17px;}.nxs-industrial-product-page .card:hover{transform:none;}.nxs-industrial-product-page .section ul{grid-template-columns:1fr;gap:9px;}.nxs-industrial-product-page .section li{padding:11px 12px 11px 36px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type\u003ep{padding:16px 14px 16px 48px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px;}}@media (prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none !important;}}\u003c\/style\u003e\u003cdiv class=\"nxs-industrial-product-page\"\u003e\u003cdiv class=\"container\"\u003e\u003cmain\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eKLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eTime-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eClass CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200,000 A RMS Symmetrical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20,000 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 × 38.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR.500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 1\/2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Listing\u003c\/td\u003e\n\u003ctd\u003eUL Listed, File E81895\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Certification\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\u003ch3\u003e0.5 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe KLDR1\/2 corresponds to the 1\/2 A rating in the Littelfuse KLDR Class CC fuse series.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e600 VAC and 300 VDC\u003c\/h3\u003e\n\u003cp\u003eThe KLDR series is rated for circuits up to 600 VAC and 300 VDC.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe KLDR series uses time-delay characteristics for inductive components with high magnetizing currents during energization.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eClass CC Construction\u003c\/h3\u003e\n\u003cp\u003eThe fuse uses the compact Class CC format with dimensions of approximately 10.3 × 38.1 mm.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eThe documented interrupting ratings are 200,000 A RMS symmetrical on AC circuits and 20,000 A on DC circuits.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eInductive Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eThe KLDR series is specified for protection of control transformers, solenoids and similar inductive components.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eControl transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit protection\u003c\/li\u003e\n\u003cli\u003eInductive component protection\u003c\/li\u003e\n\u003cli\u003eIndustrial control circuits\u003c\/li\u003e\n\u003cli\u003eMotor control circuits\u003c\/li\u003e\n\u003cli\u003eClass CC branch circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR1\/2 Class CC Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Littelfuse KLDR1\/2?\u003c\/strong\u003e\u003cbr\u003eLittelfuse KLDR1\/2 is the 1\/2 A time-delay Class CC fuse configuration in the KLDR series.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the current rating of KLDR1\/2?\u003c\/strong\u003e\u003cbr\u003eThe documented current rating is 1\/2 A, equivalent to 0.5 A.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number for this rating?\u003c\/strong\u003e\u003cbr\u003eLittelfuse lists the 1\/2 A KLDR configuration under catalog number KLDR.500 with product marking KLDR 1\/2A.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the AC voltage rating?\u003c\/strong\u003e\u003cbr\u003eThe documented AC voltage rating for the KLDR series is 600 VAC.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the DC voltage rating?\u003c\/strong\u003e\u003cbr\u003eThe documented DC voltage rating for the KLDR series is 300 VDC.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eIs KLDR1\/2 a time-delay fuse?\u003c\/strong\u003e\u003cbr\u003eYes. The KLDR series is specified as a time-delay Class CC fuse series.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the AC interrupting rating?\u003c\/strong\u003e\u003cbr\u003eThe documented AC interrupting rating is 200,000 A RMS symmetrical.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the DC interrupting rating?\u003c\/strong\u003e\u003cbr\u003eThe documented DC interrupting rating is 20,000 A.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions?\u003c\/strong\u003e\u003cbr\u003eThe KLDR 0-30 A fuse format measures approximately 10.3 mm in diameter and 38.1 mm in length.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat applications are specified for the KLDR series?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies the KLDR series for control transformers, solenoids and similar inductive components with high magnetizing currents.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eCan KLDR fuses be used in motor branch circuits?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies KLDR fuses for motor branch circuits containing IEC or NEMA rated motor controllers or contactors when the fuse time-delay characteristics meet the application requirements.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering KLDR1\/2?\u003c\/strong\u003e\u003cbr\u003eCheck the KLDR1\/2 marking, 1\/2 A current rating, required 600 VAC or 300 VDC rating, Class CC format, 10.3 × 38.1 mm dimensions and circuit protection requirements before purchasing.\u003c\/p\u003e\u003c\/section\u003e\u003c\/main\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PC","offer_id":46795246895183,"sku":"CL5-Littelfuse-KLDR1\/2","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67873241858127,"sku":"CL5-Littelfuse-KLDR1\/2*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":46795246927951,"sku":"CL5-Littelfuse-KLDR1\/2*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67873241890895,"sku":"CL5-Littelfuse-KLDR1\/2*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1_2.jpg?v=1789626838"},{"product_id":"littelfuse-kldr-30-fuse","title":"Littelfuse KLDR-30 KLDR30 KLDR 30A 600Vac TIME-DELAY 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(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none !important;}}\u003c\/style\u003e\u003cdiv class=\"nxs-industrial-product-page\"\u003e\u003cdiv class=\"container\"\u003e\u003cmain\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eKLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eTime-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eClass CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 × 38.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rating\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rating\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Approvals\u003c\/td\u003e\n\u003ctd\u003eUL, CSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\u003ch3\u003e30 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe KLDR-30 has a documented current rating of 30 A within the Littelfuse KLDR Class CC fuse series.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e600 VAC and 300 VDC\u003c\/h3\u003e\n\u003cp\u003eThe KLDR-30 is rated for circuits up to 600 VAC and 300 VDC.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe KLDR series uses time-delay characteristics for inductive loads that can produce high magnetizing currents during energization.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eClass CC Format\u003c\/h3\u003e\n\u003cp\u003eThe KLDR-30 uses the compact Class CC fuse format with dimensions of approximately 10.3 × 38.1 mm.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e200 kA AC Interrupting Rating\u003c\/h3\u003e\n\u003cp\u003eThe documented AC interrupting rating is 200 kA, with a 20 kA interrupting rating on DC circuits.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eInductive Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eThe KLDR series is designed for protection of control transformers, solenoids and similar inductive components.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eControl transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit protection\u003c\/li\u003e\n\u003cli\u003eInductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels\u003c\/li\u003e\n\u003cli\u003eControl power circuits\u003c\/li\u003e\n\u003cli\u003eClass CC fuse circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-30 Class CC Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Littelfuse KLDR-30?\u003c\/strong\u003e\u003cbr\u003eLittelfuse KLDR-30 is a 30 A time-delay Class CC fuse from the KLDR series.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the current rating of KLDR-30?\u003c\/strong\u003e\u003cbr\u003eThe documented current rating is 30 A.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the AC voltage rating of KLDR-30?\u003c\/strong\u003e\u003cbr\u003eThe documented AC voltage rating is 600 VAC.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the DC voltage rating of KLDR-30?\u003c\/strong\u003e\u003cbr\u003eThe documented DC voltage rating is 300 VDC.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eIs KLDR-30 a time-delay fuse?\u003c\/strong\u003e\u003cbr\u003eYes. The KLDR series is specified as a time-delay Class CC fuse series.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the AC interrupting rating of KLDR-30?\u003c\/strong\u003e\u003cbr\u003eThe documented AC interrupting rating is 200 kA.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the DC interrupting rating of KLDR-30?\u003c\/strong\u003e\u003cbr\u003eThe documented DC interrupting rating is 20 kA.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of KLDR-30?\u003c\/strong\u003e\u003cbr\u003eThe documented dimensions for the KLDR 0-30 A range are approximately 10.3 mm in diameter and 38.1 mm in length.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the product marking for KLDR-30?\u003c\/strong\u003e\u003cbr\u003eThe documented product marking is KLDR 30A.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat applications are specified for the KLDR series?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series is designed for control transformers, solenoids and similar inductive components with high magnetizing currents during energization.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the UL opening-time requirements for this range?\u003c\/strong\u003e\u003cbr\u003eFor the 0.1-30 A KLDR range, the documented requirement at 135% of ampere rating is 60 minutes maximum and at 200% is 12 seconds minimum.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering KLDR-30?\u003c\/strong\u003e\u003cbr\u003eCheck the KLDR-30 model marking, 30 A current rating, required 600 VAC or 300 VDC rating, Class CC format, 10.3 × 38.1 mm dimensions and circuit protection requirements before purchasing.\u003c\/p\u003e\u003c\/section\u003e\u003c\/main\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PC","offer_id":46788808900687,"sku":"CL5-Littelfuse-KLDR-30","price":6.98,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":46788808933455,"sku":"CL5-Littelfuse-KLDR-30*10","price":41.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-30-_01_1.jpg?v=1789552353"},{"product_id":"littelfuse-kldr-1-10-fuse","title":"Littelfuse KLDR-1\/10 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-blue-2:#edf6fb;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 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.card:hover{transform:none;}.nxs-industrial-product-page .section ul{grid-template-columns:1fr;gap:9px;}.nxs-industrial-product-page .section li{padding:11px 12px 11px 36px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p{padding:16px 14px 16px 48px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px;}}@media (prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important;}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-1\/10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e0.1 A (100 mA, 1\/10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e0.1 A Low-Current Protection\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-1\/10 provides a 0.1 ampere current rating for appropriately designed low-current industrial control and inductive circuits. Its 100 mA rating supports applications requiring precisely specified Class CC fuse protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible electrical circuits up to 600 VAC or 300 VDC. Littelfuse provides separate AC and DC voltage and interrupting ratings, allowing the fuse to be evaluated for suitably designed AC and DC applications.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eDesigned to accommodate temporary magnetizing current surges encountered in control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current, rather than a fixed opening time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Capacity\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separately specified 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. These ratings support protection design where available fault current is within the applicable limits.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Construction\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce the thermal and magnetic effects of short-circuit currents. Its rejection feature prevents installation of certain fuses with lower voltage or interrupting ratings when used with corresponding rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Fuse Design\u003c\/h3\u003e\n\u003cp\u003eUses a melamine body and nickel-plated bronze caps in a nominal 10.3 x 38.1 mm cartridge format. Suitable mounting accessories include compatible Littelfuse Class CC holders such as the L60030C and LPSC\/LFPSC series.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eLow-current inductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels using Class CC fuses\u003c\/li\u003e\n\u003cli\u003eMotor branch circuits with suitable IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits with compatible NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in suitable Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-1\/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-1\/10?\u003c\/strong\u003e\u003cbr\u003eIt is a 0.1 A Class CC time-delay, current-limiting cartridge fuse in the Littelfuse POWR-GARD KLDR series, intended for appropriately designed control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe 1\/10 A version is identified as KLDR.100 in the Littelfuse manufacturer datasheet. KLDR-1\/10 is a commonly used fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe current rating is 0.1 ampere, equal to 100 milliamperes or one-tenth of an ampere.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 600 VAC and 300 VDC. These are separate voltage ratings and should be evaluated according to the intended circuit.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical. The DC interrupting rating is 20,000 amperes and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1\/10 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-1\/10 is a time-delay fuse. Littelfuse designed the KLDR series to accommodate temporary current surges associated with control transformers, solenoids and similar inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the fuse open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the UL agency requirements. This is not a fixed opening time. Consult the manufacturer's time-current curves for application analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the fuse dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, equivalent to approximately 0.41 x 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials are used in KLDR-1\/10?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a melamine body with nickel-plated bronze caps. The fuse uses a Class CC cartridge configuration with rejection capability.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhich fuse holders can be used?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer recommends compatible holders from the L60030C, LPSC\/LFPSC Touch-Safe, LEC and 571\/572 series. Confirm holder ratings and the specific installation arrangement before selection.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1\/10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eThe Littelfuse KLDR datasheet identifies the series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. The manufacturer also provides a CE declaration reference. The listed DC interrupting rating is self-certified by Littelfuse.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be checked before ordering?\u003c\/strong\u003e\u003cbr\u003eVerify the KLDR-1\/10 or KLDR.100 model designation, 0.1 A current rating, 600 VAC or 300 VDC rating, applicable AC or DC interrupting capacity, time-delay behavior, fuse-holder compatibility and required quantity. The manufacturer lists KLDR.100TXP for a 10-piece pack and KLDR.100HXP for a 100-piece pack; these manufacturer packaging codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10CPS","offer_id":67898299514959,"sku":"LL1-LI-KLDR-1\/10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67898299547727,"sku":"LL1-LI-KLDR-1\/10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67898299580495,"sku":"LL1-LI-KLDR-1\/10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67898299613263,"sku":"LL1-LI-KLDR-1\/10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1_10-01.jpg?v=1793168183"},{"product_id":"littelfuse-kldr-1-4-fuse","title":"Littelfuse KLDR-1\/4 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h2{font-size:21px;margin-bottom:18px;}.nxs-industrial-product-page .section h2::before{width:20px;flex-basis:20px;}.nxs-industrial-product-page .spec-table{display:table;table-layout:fixed;}.nxs-industrial-product-page .spec-table td{padding:11px 9px;font-size:13px;line-height:1.55;overflow-wrap:anywhere;}.nxs-industrial-product-page .spec-table td:first-child{width:42%;}.nxs-industrial-product-page .features{grid-template-columns:1fr;gap:12px;}.nxs-industrial-product-page .card{padding:18px 17px;}.nxs-industrial-product-page .card:hover{transform:none;}.nxs-industrial-product-page .section ul{grid-template-columns:1fr;gap:9px;}.nxs-industrial-product-page .section li{padding:11px 12px 11px 36px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p{padding:16px 14px 16px 48px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px;}}@media (prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important;}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-1\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e0.25 A (250 mA, 1\/4 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e0.25 A Low-Current Protection\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-1\/4 provides a 0.25 ampere current rating for appropriately designed low-current industrial control circuits and inductive loads. Its 250 mA rating is suitable where quarter-ampere Class CC protection is specified.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible electrical circuits up to 600 VAC or 300 VDC. Littelfuse publishes separate AC and DC voltage and interrupting ratings, allowing the fuse to be evaluated for suitable industrial AC and DC applications.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eDesigned to accommodate temporary magnetizing current surges from control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Capacity\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separately specified 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. Circuit selection must account for available prospective fault current and the applicable voltage rating.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Construction\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce thermal and magnetic effects during short circuits. Its rejection feature helps prevent installation of unsuitable lower-voltage or lower-interrupting-rated fuses when used with corresponding rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Fuse Design\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body and nickel-plated bronze caps in a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting options include appropriately rated Littelfuse L60030C and LPSC\/LFPSC Class CC fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eLow-current inductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels using Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits with suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in suitable Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-1\/4 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-1\/4?\u003c\/strong\u003e\u003cbr\u003eIt is a 0.25 A Class CC time-delay, current-limiting cartridge fuse in the Littelfuse POWR-GARD KLDR series, intended for appropriately designed control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe 1\/4 A version is identified as KLDR.250 in the Littelfuse manufacturer datasheet. KLDR-1\/4 is a commonly used fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe current rating is 0.25 ampere, equivalent to 250 milliamperes or one-quarter of an ampere.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 600 VAC and 300 VDC. The appropriate rating must be selected according to the intended AC or DC circuit.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical, while the DC interrupting rating is 20,000 amperes. Littelfuse identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1\/4 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-1\/4 is a time-delay fuse designed to accommodate temporary inrush currents associated with control transformers, solenoids and similar inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fuse open in exactly 12 seconds at twice the rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The UL agency requirement specifies a minimum opening time of 12 seconds at 200% of rated current. It is not a fixed opening time. Use the manufacturer time-current curves to assess actual circuit protection behavior.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse lists a pre-arcing I²t value of 0.0138 A²s and a total clearing I²t value of 0.0967 A²s in the manufacturer electrical specifications table. The latter is identified under the 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a melamine body and nickel-plated bronze caps. Compatible fuse holders include appropriately specified products from the L60030C, LPSC\/LFPSC, LEC and 571\/572 series.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1\/4 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. The datasheet also provides a CE declaration reference. The listed DC interrupting rating is self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-1\/4 or KLDR.250 designation, 0.25 A current rating, 600 VAC or 300 VDC voltage requirement, applicable interrupting capacity, time-delay characteristics, fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR.250TXP for a 10-piece manufacturer pack and KLDR.250HXP for a 100-piece manufacturer pack; these ordering codes do not establish the quantity provided by an individual retail listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67898349846607,"sku":"LL1-LI-KLDR-1\/4*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67898349879375,"sku":"LL1-LI-KLDR-1\/4*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67898349912143,"sku":"LL1-LI-KLDR-1\/4*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67898349944911,"sku":"LL1-LI-KLDR-1\/4*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1_4-01.jpg?v=1793169084"},{"product_id":"littelfuse-kldr-3-10-fuse","title":"Littelfuse KLDR-3\/10 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-3\/10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e0.3 A (300 mA, 3\/10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e0.3 A Low-Current Protection\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-3\/10 provides a 0.3 ampere current rating for appropriately specified low-current industrial control circuits and inductive equipment. Its 300 mA rating supports applications requiring three-tenths ampere Class CC fuse protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible electrical circuits up to 600 VAC or 300 VDC. The manufacturer specifies separate AC and DC interrupting ratings, supporting suitable electrical protection designs that meet the applicable operating voltage and fault-current requirements.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eDesigned to accommodate temporary magnetizing current surges associated with control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies at least 12 seconds at 200% of rated current rather than a fixed opening time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Capacity\u003c\/h3\u003e\n\u003cp\u003eOffers a 200 kA RMS symmetrical AC interrupting rating and a separately specified 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. Select the fuse based on the corresponding circuit voltage and available short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Construction\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce thermal and magnetic effects of short-circuit currents. Its rejection capability helps prevent installation of unsuitable lower-voltage or lower-interrupting-rated fuses when used with corresponding rejection-type holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Fuse Design\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body with nickel-plated bronze caps in a nominal 10.3 x 38.1 mm cartridge format. Suitable accessories include compatible Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder series.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eLow-current inductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels using Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits with suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in suitable Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-3\/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-3\/10?\u003c\/strong\u003e\u003cbr\u003eIt is a 0.3 A Class CC time-delay, current-limiting cartridge fuse in the Littelfuse POWR-GARD KLDR series, intended for appropriately designed control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe 3\/10 A version is identified as KLDR.300 in the Littelfuse manufacturer datasheet. KLDR-3\/10 is a fractional-amperage model designation corresponding to this rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe rated current is 0.3 ampere, equivalent to 300 milliamperes or three-tenths of an ampere.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 600 VAC and 300 VDC. Confirm the applicable voltage rating and circuit requirements before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical, while the DC interrupting rating is 20,000 amperes. Littelfuse identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-3\/10 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-3\/10 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents from control transformers, solenoids and similar inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-3\/10 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The UL agency requirement specifies an opening time of at least 12 seconds at 200% of the rated current. This is a minimum requirement, not a fixed clearing time. Consult the manufacturer's time-current curves for circuit design.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t value of 0.0111 A²s and a total clearing I²t value of 0.1005 A²s in the electrical specifications table. The total clearing figure is presented for the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a melamine body with nickel-plated bronze caps. Compatible holder options include appropriately rated products in the L60030C, LPSC\/LFPSC, LEC and 571\/572 series.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-3\/10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eThe KLDR datasheet identifies the series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. It also references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-3\/10 or KLDR.300 designation, 0.3 A current rating, 600 VAC or 300 VDC voltage requirement, applicable AC or DC interrupting capacity, time-delay characteristics, fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR.300TXP for a 10-piece manufacturer pack and KLDR.300HXP for a 100-piece manufacturer pack; these codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67898407845967,"sku":"LL1-LI-KLDR-3\/10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67898407878735,"sku":"LL1-LI-KLDR-3\/10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67898407911503,"sku":"LL1-LI-KLDR-3\/10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67898407944271,"sku":"LL1-LI-KLDR-3\/10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-3_10-01.jpg?v=1793169468"},{"product_id":"littelfuse-kldr-6-10-fuse","title":"Littelfuse KLDR-6\/10 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-blue-2:#edf6fb;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px;}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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h2{font-size:21px;margin-bottom:18px;}.nxs-industrial-product-page .section h2::before{width:20px;flex-basis:20px;}.nxs-industrial-product-page .spec-table{display:table;table-layout:fixed;}.nxs-industrial-product-page .spec-table td{padding:11px 9px;font-size:13px;line-height:1.55;overflow-wrap:anywhere;}.nxs-industrial-product-page .spec-table td:first-child{width:42%;}.nxs-industrial-product-page .features{grid-template-columns:1fr;gap:12px;}.nxs-industrial-product-page .card{padding:18px 17px;}.nxs-industrial-product-page .card:hover{transform:none;}.nxs-industrial-product-page .section ul{grid-template-columns:1fr;gap:9px;}.nxs-industrial-product-page .section li{padding:11px 12px 11px 36px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p{padding:16px 14px 16px 48px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px;}}@media (prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important;}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-6\/10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e0.6 A (600 mA, 6\/10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e0.6 A Low-Current Protection\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-6\/10 provides a 0.6 ampere current rating for appropriately specified industrial control circuits and inductive components. Its 600 mA rating supports applications requiring six-tenths ampere Class CC overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible electrical circuits up to 600 VAC or 300 VDC. Littelfuse publishes separate AC and DC interrupting ratings, enabling proper protection selection according to circuit voltage and available fault current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eDesigned to accommodate temporary magnetizing current surges associated with control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Capacity\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separately specified 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. Both ratings must be evaluated against the prospective short-circuit current of the installation.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Construction\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce thermal and magnetic effects during short-circuit events. Its rejection feature helps prevent the use of unsuitable lower-voltage or lower-interrupting-rated fuses when installed in corresponding rejection-type holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Suitable mounting accessories include compatible Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eLow-current inductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels using Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits with suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in suitable Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-6\/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-6\/10?\u003c\/strong\u003e\u003cbr\u003eIt is a 0.6 A Class CC time-delay, current-limiting cartridge fuse in the Littelfuse POWR-GARD KLDR series, intended for appropriately designed control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe 6\/10 A version is identified as KLDR.600 in the Littelfuse manufacturer datasheet. KLDR-6\/10 is the fractional-amperage model designation corresponding to this product.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe rated current is 0.6 ampere, equivalent to 600 milliamperes or six-tenths of an ampere.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 600 VAC and 300 VDC. Verify the circuit voltage and associated protection requirements before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical, while the DC interrupting rating is 20,000 amperes. Littelfuse identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-6\/10 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-6\/10 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents from control transformers, solenoids and similar inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-6\/10 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The UL agency requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement, not a fixed opening time. Refer to the manufacturer time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse lists a pre-arcing I²t value of 0.1404 A²s and a total clearing I²t value of 0.3742 A²s in its electrical specifications table. The total clearing figure is presented for the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a melamine body with nickel-plated bronze caps. Compatible holder options include appropriately rated products from the L60030C, LPSC\/LFPSC, LEC and 571\/572 series.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-6\/10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. Its datasheet also references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-6\/10 or KLDR.600 designation, 0.6 A current rating, 600 VAC or 300 VDC requirement, applicable AC or DC interrupting capacity, time-delay characteristics, fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR.600TXP for a 10-piece manufacturer pack and KLDR.600HXP for a 100-piece manufacturer pack; these codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67898451591247,"sku":"LL1-LI-KLDR-6\/10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67898451624015,"sku":"LL1-LI-KLDR-6\/10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67898451656783,"sku":"LL1-LI-KLDR-6\/10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67898451689551,"sku":"LL1-LI-KLDR-6\/10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-6_10-01.jpg?v=1793170258"},{"product_id":"littelfuse-kldr-8-10-fuse","title":"Littelfuse KLDR-8\/10 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-blue-2:#edf6fb;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px;}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif;}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important;}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-8\/10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e0.8 A (800 mA, 8\/10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e0.8 A Low-Current Protection\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-8\/10 provides a 0.8 ampere current rating for appropriately specified industrial control circuits and inductive equipment. Its 800 mA rating supports applications requiring eight-tenths ampere Class CC overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible electrical circuits up to 600 VAC or 300 VDC. Littelfuse specifies separate AC and DC interrupting ratings, supporting proper protection selection according to operating voltage and available fault current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eDesigned to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Capacity\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separately specified 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. Both ratings must be evaluated against the prospective short-circuit current of the installation.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Construction\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce thermal and magnetic effects during short-circuit events. Its rejection feature helps prevent installation of unsuitable lower-voltage or lower-interrupting-rated fuses when used with corresponding rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting options include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eLow-current inductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels using Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits with suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in suitable Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-8\/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-8\/10?\u003c\/strong\u003e\u003cbr\u003eIt is a 0.8 A Class CC time-delay, current-limiting cartridge fuse in the Littelfuse POWR-GARD KLDR series, intended for appropriately designed control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe 8\/10 A version is identified as KLDR.800 in the Littelfuse manufacturer datasheet. KLDR-8\/10 is the fractional-amperage designation corresponding to this product.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe rated current is 0.8 ampere, equivalent to 800 milliamperes or eight-tenths of an ampere.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 600 VAC and 300 VDC. Verify the applicable circuit voltage and associated protection requirements before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC, while the DC interrupting rating is 20,000 amperes at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-8\/10 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-8\/10 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents from control transformers, solenoids and similar inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-8\/10 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The UL agency requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement, not a fixed opening time. Refer to the manufacturer time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse lists a pre-arcing I²t value of 0.2416 A²s and a total clearing I²t value of 2.064 A²s in the electrical specifications table. The total clearing figure is provided for the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a melamine body with nickel-plated bronze caps. Compatible holder options include appropriately rated products from the L60030C, LPSC\/LFPSC, LEC and 571\/572 series.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-8\/10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. Its datasheet also references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-8\/10 or KLDR.800 designation, 0.8 A current rating, 600 VAC or 300 VDC voltage requirement, applicable AC or DC interrupting capacity, time-delay characteristics, fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR.800TXP for a 10-piece manufacturer pack and KLDR.800HXP for a 100-piece manufacturer pack; these codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10pcs","offer_id":67898487767119,"sku":"LL1-LI-KLDR-8\/10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5pcs","offer_id":67898487799887,"sku":"LL1-LI-KLDR-8\/10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1pcs","offer_id":67898487832655,"sku":"LL1-LI-KLDR-8\/10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20pcs","offer_id":67898487865423,"sku":"LL1-LI-KLDR-8\/10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-8_10-01.jpg?v=1793170585"},{"product_id":"littelfuse-kldr-1-fuse","title":"Littelfuse KLDR-1 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e1 A (1000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e1 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-1 provides a 1 ampere current rating for appropriately specified industrial control circuits and inductive electrical equipment. Its 1000 mA rating supports applications requiring Class CC overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible electrical circuits up to 600 VAC or 300 VDC. Littelfuse specifies separate AC and DC interrupting ratings, supporting proper selection according to operating voltage and available prospective fault current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eDesigned to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Capacity\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separate 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. The applicable interrupting rating must be compared with the prospective fault current of the installation.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Design\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce thermal and magnetic effects during short-circuit events. Its rejection feature helps prevent the installation of unsuitable fuses with lower voltage or interrupting ratings when used with corresponding rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting options include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eLow-current inductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels using Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits with suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in suitable Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-1 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-1?\u003c\/strong\u003e\u003cbr\u003eIt is a 1 A Class CC time-delay, current-limiting cartridge fuse in the Littelfuse POWR-GARD KLDR series, intended for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eLittelfuse lists the 1 A model under catalog number KLDR001, with product marking KLDR 1A. KLDR-1 is a commonly used model designation for this current rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe rated current is 1 ampere, equivalent to 1000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 600 VAC and 300 VDC. Confirm the applicable circuit voltage and related electrical protection requirements before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC, while the DC interrupting rating is 20,000 amperes at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-1 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-1 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The UL agency requirement specifies a minimum opening time of 12 seconds at 200% of rated current. This is not a fixed opening time. Refer to the manufacturer's time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse lists a pre-arcing I²t value of 0.4494 A²s and a total clearing I²t value of 5.883 A²s in its electrical specifications table. The total clearing figure corresponds to the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a melamine body with nickel-plated bronze caps. Compatible fuse-holder options include appropriately rated products from the L60030C, LPSC\/LFPSC, LEC and 571\/572 series.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eThe KLDR datasheet identifies the series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. It also references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-1 or KLDR001 designation, 1 A current rating, 600 VAC or 300 VDC voltage requirement, applicable interrupting capacity, time-delay characteristics, fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR001.TXP for a 10-piece manufacturer pack and KLDR001.HXP for a 100-piece manufacturer pack; these packaging codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67898559070287,"sku":"LL1-LI-KLDR-1*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67898559037519,"sku":"LL1-LI-KLDR-1*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67898559004751,"sku":"LL1-LI-KLDR-1*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67898559103055,"sku":"LL1-LI-KLDR-1*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1-01.jpg?v=1793171058"},{"product_id":"littelfuse-kldr-1-1-4-fuse","title":"Littelfuse KLDR-1-1\/4 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-1-1\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR1.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 1 1\/4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e1.25 A (1250 mA, 1-1\/4 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e1.25 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-1-1\/4 provides a 1.25 ampere current rating for appropriately specified industrial control circuits, transformer primary circuits and inductive electrical equipment. Its 1250 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible electrical circuits up to 600 VAC or 300 VDC. Separate AC and DC interrupting ratings support application-specific selection according to operating voltage and available prospective fault current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eDesigned to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Capacity\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separate 20 kA DC interrupting rating. Littelfuse identifies the DC rating as self-certified. Both ratings should be evaluated against the prospective short-circuit current of the installation.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce thermal and magnetic effects during short-circuit events. Its rejection feature helps prevent installation of unsuitable lower-voltage or lower-interrupting-rated fuses when used with corresponding rejection-type holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eLow-current inductive control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels using Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits with suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in suitable Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-1-1\/4 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Confirm the required purchase quantity and packaging configuration before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-1-1\/4?\u003c\/strong\u003e\u003cbr\u003eIt is a 1.25 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series. The fuse is designed for compatible control transformers, solenoids and other industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the 1-1\/4 A version under manufacturer catalog number KLDR1.25. The product marking is KLDR 1 1\/4 A.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe rated current is 1.25 amperes, equivalent to 1250 milliamperes or one and one-quarter amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. Confirm that the intended circuit is within the appropriate voltage rating and installation requirements.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1-1\/4 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-1-1\/4 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-1-1\/4 open in exactly 12 seconds at twice the rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The UL agency requirement specifies a minimum opening time of 12 seconds at 200% of rated current. This is not a fixed opening time. Consult the manufacturer's time-current curves to evaluate actual circuit protection behavior.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t value of 0.4367 A²s and a total clearing I²t value of 7.354 A²s. The total clearing value is listed under the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a melamine body with nickel-plated bronze caps. Recommended compatible holder families include L60030C, LPSC\/LFPSC, LEC and 571\/572. The specific fuse holder must meet the application's electrical and mechanical requirements.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1-1\/4 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. The datasheet also references a CE declaration. Its DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-1-1\/4 or KLDR1.25 designation, 1.25 A current rating, applicable 600 VAC or 300 VDC requirement, AC or DC interrupting capacity, time-delay characteristics, fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR1.25TXP for a 10-piece manufacturer pack and KLDR1.25HXP for a 100-piece manufacturer pack; these ordering codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67898595409999,"sku":"LL1-LI-KLDR-1-1\/4*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67898595377231,"sku":"LL1-LI-KLDR-1-1\/4*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67898595344463,"sku":"LL1-LI-KLDR-1-1\/4*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67898595442767,"sku":"LL1-LI-KLDR-1-1\/4*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1-1_4-01.jpg?v=1793171463"},{"product_id":"littelfuse-kldr-1-1-2-fuse","title":"Littelfuse KLDR-1-1\/2 Class CC Time-Delay 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-1-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR01.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 1 1\/2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e1.5 A (1500 mA, 1-1\/2 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e1.5 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-1-1\/2 provides a 1.5 ampere current rating for properly specified industrial control and transformer protection circuits. Its 1500 mA rating supports electrical designs requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eDesigned for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate interrupting ratings allow selection based on the circuit's operating voltage and prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Protection\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic accommodates temporary current surges associated with energizing control transformers, solenoids and similar inductive components. Manufacturer documentation specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eRated to interrupt 200 kA RMS symmetrical in AC circuits and 20 kA in DC circuits at their respective rated voltages. Littelfuse identifies its DC interrupting rating as manufacturer self-certified.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Design\u003c\/h3\u003e\n\u003cp\u003eCurrent-limiting operation reduces the potential heating and magnetic effects of short-circuit currents. Its rejection feature helps prevent installation of fuses having insufficient voltage or interrupting ratings when paired with compatible rejection-style fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Construction\u003c\/h3\u003e\n\u003cp\u003eThe Class CC cartridge features a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm format. It is designed for use with appropriately rated Class CC fuse holders and fuse blocks.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eControl panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eMotor branch circuits with compatible IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible AC and DC industrial control equipment\u003c\/li\u003e\n\u003cli\u003eExact-rating fuse replacement in Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-1-1\/2 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-1-1\/2?\u003c\/strong\u003e\u003cbr\u003eIt is a 1.5 A Class CC current-limiting time-delay cartridge fuse from the Littelfuse POWR-GARD KLDR series. The series is designed for compatible control transformers, solenoids and industrial control circuits.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer's catalog number?\u003c\/strong\u003e\u003cbr\u003eThe corresponding Littelfuse catalog number is KLDR01.5. The manufacturer's product marking is KLDR 1 1\/2 A.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 1.5 amperes, equivalent to 1500 milliamperes or one and one-half amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are its AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The circuit voltage must remain within the applicable rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 A RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 A at 300 VDC and is self-certified by Littelfuse.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1-1\/2 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eIt is a time-delay fuse intended to accommodate brief inrush currents from control transformers, solenoids and related inductive components.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the fuse open in exactly 12 seconds at 200% rated current?\u003c\/strong\u003e\u003cbr\u003eNo. Littelfuse lists a UL opening-time requirement of at least 12 seconds at 200% rated current. This is a minimum requirement rather than an exact opening time. Refer to the published time-current curves for application analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are its pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies a pre-arcing I²t of 0.9302 A²s and a total clearing I²t of 5.885 A²s. The total clearing value is stated for the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the nominal physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe cartridge measures approximately 10.3 mm in diameter and 38.1 mm in length, corresponding to 0.41 x 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body and nickel-plated bronze caps. Littelfuse identifies compatible fuse holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the holder's applicable electrical rating and physical compatibility.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat certifications and environmental compliance information are available?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer identifies the KLDR series as UL Listed, CSA Certified and RoHS compliant, with a CE declaration referenced in the datasheet. The 20 kA DC interrupting rating is manufacturer self-certified rather than part of the listed AC approvals.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be confirmed before purchasing KLDR-1-1\/2?\u003c\/strong\u003e\u003cbr\u003eVerify the KLDR-1-1\/2 or KLDR01.5 designation, 1.5 A current rating, applicable 600 VAC or 300 VDC requirement, interrupting rating, time-delay characteristics, fuse-holder compatibility and the offered quantity. Littelfuse lists KLDR01.5TXP for a manufacturer 10-piece pack and KLDR01.5HXP for a 100-piece pack; these codes do not establish the quantity supplied by a separate retail listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67898714619983,"sku":"LL1-LI-KLDR-1-1\/2*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67898714652751,"sku":"LL1-LI-KLDR-1-1\/2*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67898714685519,"sku":"LL1-LI-KLDR-1-1\/2*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67898714718287,"sku":"LL1-LI-KLDR-1-1\/2*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1-1_2-01.jpg?v=1793171791"},{"product_id":"littelfuse-kldr-1-6-10-fuse","title":"Littelfuse KLDR-1-6\/10 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-1-6\/10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR01.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 1 6\/10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e1.6 A (1600 mA, 1-6\/10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e1.6 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-1-6\/10 provides a 1.6 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive equipment. Its 1600 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC interrupting ratings allow electrical protection selection according to the circuit voltage and available prospective fault current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic accommodates temporary magnetizing inrush currents associated with energizing control transformers, solenoids and similar inductive components. Manufacturer documentation specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical interrupting rating at 600 VAC and a separate 20 kA interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Both ratings must be evaluated against the available short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Design\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit conditions. Its rejection capability helps prevent the installation of unsuitable fuses with lower voltage or interrupting ratings when used with compatible rejection-style fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Construction\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting options include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder series.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eControl panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating fuse replacement in Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-1-6\/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-1-6\/10?\u003c\/strong\u003e\u003cbr\u003eIt is a 1.6 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series. The fuse is intended for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe corresponding Littelfuse catalog number is KLDR01.6. The manufacturer identifies its product marking as KLDR 1 6\/10A.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe current rating is 1.6 amperes, equivalent to 1600 milliamperes or one and six-tenths amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are its AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The circuit operating voltage must not exceed the applicable rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is self-certified by Littelfuse.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1-6\/10 a time-delay fuse?\u003c\/strong\u003e\u003cbr\u003eYes. The KLDR series is designed to tolerate brief magnetizing inrush currents when energizing control transformers, solenoids and comparable inductive loads.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it open in exactly 12 seconds at twice the rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current. This is not a fixed opening time. Consult Littelfuse time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse lists a pre-arcing I²t value of 0.7495 A²s and a total clearing I²t value of 6.682 A²s. The total clearing value is specified in the manufacturer's 200 kA test-condition column.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the nominal physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe fuse has a nominal diameter of 10.3 mm and a nominal length of 38.1 mm, approximately 0.41 x 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse recommends compatible holders from the L60030C, LPSC\/LFPSC, LEC and 571\/572 families. The exact holder must meet the electrical and mechanical requirements of the installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-1-6\/10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. Its datasheet also references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-1-6\/10?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-1-6\/10 or KLDR01.6 model designation, 1.6 A current rating, 600 VAC or 300 VDC circuit requirement, applicable interrupting capacity, time-delay behavior, compatible Class CC holder and offered quantity. Manufacturer ordering numbers KLDR01.6TXP and KLDR01.6HXP refer to 10-piece and 100-piece packaging, respectively, and do not establish the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67899330429007,"sku":"LL1-LI-KLDR-1-6\/10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67899330396239,"sku":"LL1-LI-KLDR-1-6\/10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67899330363471,"sku":"LL1-LI-KLDR-1-6\/10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67899330461775,"sku":"LL1-LI-KLDR-1-6\/10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1-6_10-01.jpg?v=1793173072"},{"product_id":"littelfuse-kldr-2-fuse","title":"Littelfuse KLDR-2 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e2 A (2000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e2 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-2 provides a 2 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 2000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow electrical protection selection according to circuit operating voltage and prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design accommodates brief magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL opening-time requirement specifies a minimum of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical interrupting rating at 600 VAC and a separate 20 kA interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Both ratings must be evaluated against available fault current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Design\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce the heating and magnetic effects of short-circuit currents. Its rejection capability helps prevent the use of unsuitable lower-voltage or lower-interrupting-rated fuses when paired with corresponding rejection-style fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Construction\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting options include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder series.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-model replacement in Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-2 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-2?\u003c\/strong\u003e\u003cbr\u003eIt is a 2 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series. The fuse is intended for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe corresponding Littelfuse catalog number is KLDR002. The manufacturer identifies the product marking as KLDR 2A.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 2 amperes, equivalent to 2000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are its AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-2 is a time-delay fuse. The KLDR series is designed to accommodate brief magnetizing inrush currents from control transformers, solenoids and similar inductive loads.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-2 open in exactly 12 seconds at twice the rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves when evaluating circuit protection.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 0.8615 A²s and a total clearing I²t of 14.01 A²s. The total clearing value is published for the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body and nickel-plated bronze caps. Littelfuse lists compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm electrical and mechanical compatibility with the intended installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895, CSA Certified under file LR29862 and RoHS compliant. Its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-2?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-2 or KLDR002 designation, 2 A current rating, 600 VAC or 300 VDC circuit requirement, applicable AC or DC interrupting capacity, time-delay behavior, compatible Class CC fuse holder and purchase quantity. Littelfuse lists KLDR002.TXP for a manufacturer 10-piece pack and KLDR002.HXP for a 100-piece pack; these codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67899775320143,"sku":"LL1-LI-KLDR-2*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67899775352911,"sku":"LL1-LI-KLDR-2*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67899775385679,"sku":"LL1-LI-KLDR-2*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67899775418447,"sku":"LL1-LI-KLDR-2*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-2-01.jpg?v=1793173481"},{"product_id":"littelfuse-kldr-2-1-4-fuse","title":"Littelfuse KLDR-2-1\/4 Class CC Time-Delay 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-2-1\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR2.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 2 1\/4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e2.25 A (2250 mA, 2-1\/4 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e1.126 A²s (Manufacturer Electrical Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e26.41 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 10-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR2.25TXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 100-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR2.25HXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 10-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879255\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879298\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE Compliance\u003c\/td\u003e\n\u003ctd\u003eCE Declaration Referenced in Manufacturer Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMexico (Manufacturer Series Datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Fuse Holder Series\u003c\/td\u003e\n\u003ctd\u003eL60030C, LPSC\/LFPSC Touch-Safe, LEC, 571\/572\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Reference\u003c\/td\u003e\n\u003ctd\u003eLittelfuse KLDR Class CC Fuse Datasheet, Revised 06\/27\/2022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e2.25 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-2-1\/4 provides a 2.25 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 2250 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC interrupting ratings allow protective-device selection according to operating voltage and prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. The manufacturer identifies the DC interrupting rating as self-certified. The available short-circuit current must not exceed the applicable interrupting rating.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce the thermal and magnetic effects of short-circuit currents. Rejection-style construction helps prevent the use of unsuitable lower-voltage or lower-interrupting-rated fuses when installed in compatible rejection-type holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible installation accessories include appropriately rated Class CC fuse holders from the Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-2-1\/4 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-2-1\/4?\u003c\/strong\u003e\u003cbr\u003eIt is a 2.25 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR2.25. The product marking is KLDR 2 1\/4A, and KLDR-2-1\/4 is the corresponding fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 2.25 amperes, equivalent to 2250 milliamperes or two and one-quarter amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2-1\/4 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-2-1\/4 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-2-1\/4 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement and not a fixed opening time. Consult the manufacturer time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 1.126 A²s and a total clearing I²t of 26.41 A²s. The total clearing value is published for the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the specific holder's electrical and mechanical compatibility before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2-1\/4 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies this KLDR fuse as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-2-1\/4?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-2-1\/4 or KLDR2.25 model designation, 2.25 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC holder compatibility and purchase quantity. Littelfuse lists KLDR2.25TXP for a manufacturer 10-piece pack and KLDR2.25HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67900084256847,"sku":"LL1-LI-KLDR-2-1\/4*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67900084289615,"sku":"LL1-LI-KLDR-2-1\/4*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67900084322383,"sku":"LL1-LI-KLDR-2-1\/4*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67900084355151,"sku":"LL1-LI-KLDR-2-1\/4*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-2-1_4-01.jpg?v=1793173735"},{"product_id":"littelfuse-kldr-2-1-2-fuse","title":"Littelfuse KLDR-2-1\/2 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-2-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR02.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 2 1\/2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e2.5 A (2500 mA, 2-1\/2 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e2.5 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-2-1\/2 provides a 2.5 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 2500 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow protective-device selection according to operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The available short-circuit current must not exceed the applicable interrupting rating.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce the thermal and magnetic effects of short-circuit currents. Rejection-style construction helps prevent installation of unsuitable lower-voltage or lower-interrupting-rated fuses when installed in compatible rejection-type holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible installation accessories include appropriately rated Class CC fuse holders from the Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-2-1\/2 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-2-1\/2?\u003c\/strong\u003e\u003cbr\u003eIt is a 2.5 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR02.5. The product marking is KLDR 2 1\/2A, and KLDR-2-1\/2 is the corresponding fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 2.5 amperes, equivalent to 2500 milliamperes or two and one-half amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2-1\/2 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-2-1\/2 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-2-1\/2 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement and not a fixed opening time. Consult the manufacturer time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 2.087 A²s and a total clearing I²t of 35.35 A²s. The total clearing value is published for the manufacturer's 200 kA test condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the specific holder's electrical and mechanical compatibility before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2-1\/2 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies this KLDR fuse as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-2-1\/2?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-2-1\/2 or KLDR02.5 model designation, 2.5 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC holder compatibility and purchase quantity. Littelfuse lists KLDR02.5TXP for a manufacturer 10-piece pack and KLDR02.5HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67900375138383,"sku":"LL1-LI-KLDR-2-1\/2*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67900375171151,"sku":"LL1-LI-KLDR-2-1\/2*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67900375203919,"sku":"LL1-LI-KLDR-2-1\/2*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67900375236687,"sku":"LL1-LI-KLDR-2-1\/2*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-2-1_2-01.jpg?v=1793174220"},{"product_id":"littelfuse-kldr-2-8-10-fuse","title":"Littelfuse KLDR-2-8\/10 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-2-8\/10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR02.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 2 8\/10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e2.8 A (2800 mA, 2-8\/10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e21.28 A²s (Manufacturer Electrical Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e45.47 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e2.8 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-2-8\/10 provides a 2.8 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 2800 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow protective-device selection according to operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The available short-circuit current must not exceed the applicable interrupting rating.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce the heating and magnetic effects of short-circuit currents. Rejection-style construction helps prevent installation of unsuitable fuses with lower voltage or interrupting ratings when used with compatible rejection-type holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible installation accessories include appropriately rated Littelfuse Class CC fuse holders from the L60030C, LPSC\/LFPSC, LEC and 571\/572 families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-2-8\/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-2-8\/10?\u003c\/strong\u003e\u003cbr\u003eIt is a 2.8 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR02.8. The product marking is KLDR 2 8\/10A, and KLDR-2-8\/10 is the corresponding fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 2.8 amperes, equivalent to 2800 milliamperes or two and eight-tenths amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2-8\/10 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-2-8\/10 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-2-8\/10 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement and not a fixed opening time. Consult the manufacturer time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 21.28 A²s and a total clearing I²t of 45.47 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values are specific to KLDR02.8 and should not be replaced with data for the 2.5 A or 3 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the specific holder's electrical and mechanical compatibility before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-2-8\/10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-2-8\/10?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-2-8\/10 or KLDR02.8 model designation, 2.8 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC holder compatibility and purchase quantity. Littelfuse lists KLDR02.8TXP for a manufacturer 10-piece pack and KLDR02.8HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67900903456847,"sku":"LL1-LI-KLDR-2-8\/10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67900903489615,"sku":"LL1-LI-KLDR-2-8\/10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67900903522383,"sku":"LL1-LI-KLDR-2-8\/10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67900903555151,"sku":"LL1-LI-KLDR-2-8\/10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-2-8_10-01.jpg?v=1793175445"},{"product_id":"littelfuse-kldr-3-fuse","title":"Littelfuse KLDR-3 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,0.08);--shadow-hover:0 16px 36px rgba(8,79,124,0.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,0.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e3 A (3000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e3 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-3 provides a 3 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 3000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow protective-device selection according to the circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce heating and magnetic effects during short-circuit events. Rejection-style construction helps prevent the installation of unsuitable fuses with lower voltage or interrupting ratings when paired with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible installation accessories include appropriately rated Littelfuse Class CC fuse holders from the L60030C, LPSC\/LFPSC, LEC and 571\/572 families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-3 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-3?\u003c\/strong\u003e\u003cbr\u003eIt is a 3 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR003. The product marking is KLDR 3A, and KLDR-3 is a corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 3 amperes, equivalent to 3000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-3 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-3 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-3 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 23.21 A²s and a total clearing I²t of 55.99 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply to KLDR003 and must not be confused with the adjacent 2.8 A or 3.2 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the specific holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-3 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-3?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-3 or KLDR003 designation, 3 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR003.TXP for a manufacturer 10-piece pack and KLDR003.HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67900973908047,"sku":"LL1-LI-KLDR-3*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67900973940815,"sku":"LL1-LI-KLDR-3*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67900973973583,"sku":"LL1-LI-KLDR-3*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67900974006351,"sku":"LL1-LI-KLDR-3*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-3-01.jpg?v=1793175668"},{"product_id":"littelfuse-kldr-3-1-2-fuse","title":"Littelfuse KLDR-3-1\/2 Class CC Time-Delay 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-3-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR03.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 3 1\/2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e3.5 A (3500 mA, 3-1\/2 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e3.5 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-3-1\/2 provides a 3.5 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 3500 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow protective-device selection according to circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce heating and magnetic effects during short-circuit events. Its rejection-style construction helps prevent installation of unsuitable fuses having lower voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible installation accessories include appropriately rated Littelfuse Class CC fuse holders from the L60030C, LPSC\/LFPSC, LEC and 571\/572 families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-3-1\/2 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-3-1\/2?\u003c\/strong\u003e\u003cbr\u003eIt is a 3.5 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR03.5. The product marking is KLDR 3 1\/2A, and KLDR-3-1\/2 is the corresponding fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 3.5 amperes, equivalent to 3500 milliamperes or three and one-half amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-3-1\/2 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-3-1\/2 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-3-1\/2 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 21.42 A²s and a total clearing I²t of 109.4 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR03.5 and should not be confused with the adjacent 3.2 A or 4 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the specific holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-3-1\/2 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-3-1\/2?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-3-1\/2 or KLDR03.5 designation, 3.5 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR03.5TXP for a manufacturer 10-piece pack and KLDR03.5HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67901060579407,"sku":"LL1-LI-KLDR-3-1\/2*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67901060612175,"sku":"LL1-LI-KLDR-3-1\/2*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67901060644943,"sku":"LL1-LI-KLDR-3-1\/2*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67901060677711,"sku":"LL1-LI-KLDR-3-1\/2*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-3-1_2-01.jpg?v=1793176013"},{"product_id":"littelfuse-kldr-4-fuse","title":"Littelfuse KLDR-4 Class CC 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.section:last-of-type\u003ep::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e4 A (4000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e4 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-4 provides a 4 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 4000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow protective-device selection according to circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce heating and magnetic effects during short-circuit events. Its rejection-style construction helps prevent installation of unsuitable fuses having lower voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible installation accessories include appropriately rated Littelfuse Class CC fuse holders from the L60030C, LPSC\/LFPSC, LEC and 571\/572 families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-4 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-4?\u003c\/strong\u003e\u003cbr\u003eIt is a 4 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR004. The product marking is KLDR 4A, and KLDR-4 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 4 amperes, equivalent to 4000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-4 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-4 is a time-delay fuse. The KLDR series is designed to tolerate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-4 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 83.81 A²s and a total clearing I²t of 258.6 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR004 and should not be confused with the adjacent 3.5 A or 4.5 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the specific holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-4 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-4?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-4 or KLDR004 designation, 4 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR004.TXP for a manufacturer 10-piece pack and KLDR004.HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67901181624399,"sku":"LL1-LI-KLDR-4*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67901181591631,"sku":"LL1-LI-KLDR-4*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67901181558863,"sku":"LL1-LI-KLDR-4*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67901181657167,"sku":"LL1-LI-KLDR-4*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-4-01.jpg?v=1793176325"},{"product_id":"littelfuse-kldr-4-1-2-fuse","title":"Littelfuse KLDR-4-1\/2 Class CC Time-Delay 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.section:last-of-type\u003ep::before{content:counter(faq,decimal-leading-zero);position:absolute;left:15px;top:17px;min-width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;background:var(--industrial-blue);color:#fff;font-size:11px;font-weight:700;letter-spacing:.3px;box-shadow:0 5px 12px rgba(8,79,124,.18)}.nxs-industrial-product-page .section:last-of-type\u003ep strong{display:inline-block;color:#0b456d;margin-bottom:5px;line-height:1.4}.nxs-industrial-product-page .section:last-of-type\u003ebr{display:block;content:'';margin:10px 0}@media(max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px 24px}.nxs-industrial-product-page .section{padding:26px 17px 24px;margin:14px auto;border-radius:11px}.nxs-industrial-product-page .section::before{width:4px}.nxs-industrial-product-page .section h2{font-size:21px;margin-bottom:18px}.nxs-industrial-product-page .section 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-4-1\/2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR04.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 4 1\/2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e4.5 A (4500 mA, 4-1\/2 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e83.89 A²s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e110.6 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Manufacturer Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 10-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR04.5TXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 100-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR04.5HXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 10-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879262\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879305\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE Compliance\u003c\/td\u003e\n\u003ctd\u003eCE Declaration Referenced in Manufacturer Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMexico (Manufacturer Datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Fuse Holder Series\u003c\/td\u003e\n\u003ctd\u003eL60030C, LPSC\/LFPSC Touch-Safe, LEC, 571\/572\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e4.5 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-4-1\/2 provides a 4.5 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 4500 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow protective-device selection according to operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic accommodates temporary magnetizing inrush currents associated with control transformers, solenoids and other inductive loads. Littelfuse specifies a minimum opening time of 12 seconds at 200% of rated current under the applicable UL requirement, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Available fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting design helps reduce heating and magnetic effects during short-circuit events. Rejection-style construction helps prevent installation of fuses with insufficient voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Construction\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-4-1\/2 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-4-1\/2?\u003c\/strong\u003e\u003cbr\u003eIt is a 4.5 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformer, solenoid and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR04.5. The product marking is KLDR 4 1\/2A, and KLDR-4-1\/2 is the corresponding fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 4.5 amperes, equivalent to 4500 milliamperes or four and one-half amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the corresponding AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-4-1\/2 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-4-1\/2 is a time-delay fuse. Its operating characteristic is intended to accommodate brief magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-4-1\/2 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed clearing time. Consult the manufacturer's time-current curves for circuit protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 83.89 A²s and a total clearing I²t of 110.6 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values are specific to KLDR04.5 and should not be confused with the 4 A or 5 A versions.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the specific holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-4-1\/2 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-4-1\/2?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-4-1\/2 or KLDR04.5 designation, 4.5 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR04.5TXP for a manufacturer 10-piece pack and KLDR04.5HXP for a 100-piece pack; these ordering numbers do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67901301358671,"sku":"LL1-LI-KLDR-4-1\/2*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67901301391439,"sku":"LL1-LI-KLDR-4-1\/2*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67901301424207,"sku":"LL1-LI-KLDR-4-1\/2*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67901301456975,"sku":"LL1-LI-KLDR-4-1\/2*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-4-1_2-01.jpg?v=1793176638"},{"product_id":"littelfuse-kldr-5-fuse","title":"Littelfuse KLDR-5 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#fff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,.08);--shadow-hover:0 16px 36px rgba(8,79,124,.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 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.section:last-of-type\u003ep::before{content:counter(faq,decimal-leading-zero);position:absolute;left:15px;top:17px;min-width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;background:var(--industrial-blue);color:#fff;font-size:11px;font-weight:700;letter-spacing:.3px;box-shadow:0 5px 12px rgba(8,79,124,.18)}.nxs-industrial-product-page .section:last-of-type\u003ep strong{display:inline-block;color:#0b456d;margin-bottom:5px;line-height:1.4}.nxs-industrial-product-page .section:last-of-type\u003ebr{display:block;content:'';margin:10px 0}@media(max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px 24px}.nxs-industrial-product-page .section{padding:26px 17px 24px;margin:14px auto;border-radius:11px}.nxs-industrial-product-page .section::before{width:4px}.nxs-industrial-product-page .section h2{font-size:21px;margin-bottom:18px}.nxs-industrial-product-page .section 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e5 A (5000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e63.33 A²s (Manufacturer Electrical Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e84.04 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Manufacturer Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 10-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR005.TXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 100-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR005.HXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 10-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879263\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879306\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE Compliance\u003c\/td\u003e\n\u003ctd\u003eCE Declaration Referenced in Manufacturer Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMexico (Manufacturer Datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Reference\u003c\/td\u003e\n\u003ctd\u003eLittelfuse KLDR Class CC Fuse Datasheet, Revised 06\/27\/2022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e5 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-5 provides a 5 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 5000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings allow protective-device selection according to circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design accommodates temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Available fault current must remain within the applicable interrupting rating.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce the heating and magnetic effects associated with short-circuit currents. Rejection-style construction helps prevent installation of fuses with insufficient voltage or interrupting ratings when used with compatible rejection-type holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-5 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-5?\u003c\/strong\u003e\u003cbr\u003eIt is a 5 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, intended for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR005. The product marking is KLDR 5A, and KLDR-5 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 5 amperes, equivalent to 5000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-5 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-5 is a time-delay fuse. The KLDR series is designed to tolerate brief magnetizing inrush currents associated with control transformers, solenoids and comparable inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-5 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 63.33 A²s and a total clearing I²t of 84.04 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply to KLDR005 and should not be substituted with those of the adjacent 4.5 A or 5.6 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-5 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-5?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-5 or KLDR005 designation, 5 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR005.TXP for a manufacturer 10-piece pack and KLDR005.HXP for a 100-piece pack; these ordering codes do not determine the quantity supplied in an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67901980049487,"sku":"LL1-LI-KLDR-5*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67901980082255,"sku":"LL1-LI-KLDR-5*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67901980115023,"sku":"LL1-LI-KLDR-5*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67901980147791,"sku":"LL1-LI-KLDR-5*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-5-01.jpg?v=1793176855"},{"product_id":"littelfuse-kldr-5-6-10-fuse","title":"Littelfuse KLDR-5-6\/10 Class CC Time-Delay 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-5-6\/10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR05.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 5 6\/10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e5.6 A (5600 mA, 5-6\/10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e87.66 A²s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e114.0 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e5.6 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-5-6\/10 provides a 5.6 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 5600 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC voltage ratings support protective-device selection according to operating voltage and prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separate 20 kA DC interrupting rating. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit events. Rejection-style construction helps prevent installation of fuses having insufficient voltage or interrupting ratings when used with corresponding fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-5-6\/10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-5-6\/10?\u003c\/strong\u003e\u003cbr\u003eIt is a 5.6 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, intended for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR05.6. The product marking is KLDR 5 6\/10A, and KLDR-5-6\/10 is the corresponding fractional-amperage model designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 5.6 amperes, equivalent to 5600 milliamperes or five and six-tenths amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical, and the DC interrupting rating is 20,000 amperes. The manufacturer identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-5-6\/10 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-5-6\/10 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-5-6\/10 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult Littelfuse time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 87.66 A²s and a total clearing I²t of 114.0 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR05.6 and should not be substituted with values for the adjacent 5 A or 6 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected fuse holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-5-6\/10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-5-6\/10?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-5-6\/10 or KLDR05.6 designation, 5.6 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR05.6TXP for a manufacturer 10-piece pack and KLDR05.6HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67902046601295,"sku":"LL1-LI-KLDR-5-6\/10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902046634063,"sku":"LL1-LI-KLDR-5-6\/10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67902046666831,"sku":"LL1-LI-KLDR-5-6\/10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902046699599,"sku":"LL1-LI-KLDR-5-6\/10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-2-1_2-01.jpg?v=1793174220"},{"product_id":"littelfuse-kldr-6-fuse","title":"Littelfuse KLDR-6 Class CC 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 6A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e6 A (6000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e129.5 A²s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e161.9 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Manufacturer Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 10-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR006.TXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 100-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR006.HXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 10-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879265\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879308\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE Compliance\u003c\/td\u003e\n\u003ctd\u003eCE Declaration Referenced in Manufacturer Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMexico (Manufacturer Datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Fuse Holder Series\u003c\/td\u003e\n\u003ctd\u003eL60030C, LPSC\/LFPSC Touch-Safe, LEC, 571\/572\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Reference\u003c\/td\u003e\n\u003ctd\u003eLittelfuse KLDR Class CC Fuse Datasheet, Revised 06\/27\/2022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e6 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-6 provides a 6 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 6000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC voltage ratings support protective-device selection according to operating voltage and prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current, rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separate 20 kA DC interrupting rating. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit events. Rejection-style construction helps prevent installation of fuses having insufficient voltage or interrupting ratings when used with corresponding fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-6 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-6?\u003c\/strong\u003e\u003cbr\u003eIt is a 6 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, intended for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR006. The product marking is KLDR 6A, and KLDR-6 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 6 amperes, equivalent to 6000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical, and the DC interrupting rating is 20,000 amperes. The manufacturer identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-6 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-6 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-6 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult Littelfuse time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 129.5 A²s and a total clearing I²t of 161.9 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR006 and should not be substituted with values for the adjacent 5.6 A or 6.25 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected fuse holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-6 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-6?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-6 or KLDR006 designation, 6 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR006.TXP for a manufacturer 10-piece pack and KLDR006.HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902147493967,"sku":"LL1-LI-KLDR-6*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902147526735,"sku":"LL1-LI-KLDR-6*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902147559503,"sku":"LL1-LI-KLDR-6*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902147592271,"sku":"LL1-LI-KLDR-6*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-3-01.jpg?v=1793175668"},{"product_id":"littelfuse-kldr-7-fuse","title":"Littelfuse KLDR-7 Class CC Time-Delay 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\u003cdiv class=\"nxs-industrial-product-page\"\u003e\u003cdiv class=\"container\"\u003e\u003cmain\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 7A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e7 A (7000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e202.4 A²s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e513.4 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Manufacturer Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 10-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR007.TXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 100-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR007.HXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 10-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879267\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879310\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE Compliance\u003c\/td\u003e\n\u003ctd\u003eCE Declaration Referenced in Manufacturer Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMexico (Manufacturer Datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Fuse Holder Series\u003c\/td\u003e\n\u003ctd\u003eL60030C, LPSC\/LFPSC Touch-Safe, LEC, 571\/572\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Reference\u003c\/td\u003e\n\u003ctd\u003eLittelfuse KLDR Class CC Fuse Datasheet, Revised 06\/27\/2022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\u003ch3\u003e7 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-7 provides a 7 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 7000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC voltage ratings support protective-device selection according to operating voltage and prospective short-circuit current.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current, rather than a fixed clearing time.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating and a separate 20 kA DC interrupting rating. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit events. Rejection-style construction helps prevent the installation of fuses having insufficient voltage or interrupting ratings when used with corresponding fuse holders.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-7 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-7?\u003c\/strong\u003e\u003cbr\u003eIt is a 7 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, intended for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR007. The product marking is KLDR 7A, and KLDR-7 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 7 amperes, equivalent to 7000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical, and the DC interrupting rating is 20,000 amperes. The manufacturer identifies the DC interrupting rating as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eIs KLDR-7 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-7 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eDoes KLDR-7 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult Littelfuse time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 202.4 A²s and a total clearing I²t of 513.4 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR007 and should not be substituted with data for the 6.25 A or 7.5 A models.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected fuse holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eIs KLDR-7 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-7?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-7 or KLDR007 designation, 7 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR007.TXP for a manufacturer 10-piece pack and KLDR007.HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\u003c\/section\u003e\u003c\/main\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902253137999,"sku":"LL1-LI-KLDR-7*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902253105231,"sku":"LL1-LI-KLDR-7*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902253072463,"sku":"LL1-LI-KLDR-7*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902253170767,"sku":"LL1-LI-KLDR-7*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-4-01.jpg?v=1793176325"},{"product_id":"littelfuse-kldr-8-fuse","title":"Littelfuse KLDR-8 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#fff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,.08);--shadow-hover:0 16px 36px rgba(8,79,124,.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 34px;position:relative;isolation:isolate;overflow:hidden;color:var(--text-main);line-height:1.75;-webkit-font-smoothing:antialiased}.nxs-industrial-product-page 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 8A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e8 A (8000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e8 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-8 provides an 8 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 8000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings support protective-device selection according to circuit operating voltage and prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eCurrent-limiting construction helps reduce heating and magnetic effects during short-circuit events. The rejection feature helps prevent installation of unsuitable fuses with insufficient voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-8 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-8?\u003c\/strong\u003e\u003cbr\u003eIt is an 8 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, intended for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR008. The product marking is KLDR 8A, and KLDR-8 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 8 amperes, equivalent to 8000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-8 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-8 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-8 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 111.2 A²s and a total clearing I²t of 1,145 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR008 and should not be substituted with values for the 7 A or 9 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-8 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and the datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-8?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-8 or KLDR008 designation, 8 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR008.TXP for a manufacturer 10-piece pack and KLDR008.HXP for a 100-piece pack; these codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902345642063,"sku":"LL1-LI-KLDR-8*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902345609295,"sku":"LL1-LI-KLDR-8*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902345576527,"sku":"LL1-LI-KLDR-8*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902345674831,"sku":"LL1-LI-KLDR-8*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-5-01.jpg?v=1793176855"},{"product_id":"littelfuse-kldr-9-fuse","title":"Littelfuse KLDR-9 Class CC Time-Delay 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 9A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e9 A (9000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e73.40 A²s (Manufacturer Electrical Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e1,334 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Manufacturer Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 10-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR009.TXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 100-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR009.HXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 10-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879313\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE Compliance\u003c\/td\u003e\n\u003ctd\u003eCE Declaration Referenced in Manufacturer Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMexico (Manufacturer Datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Fuse Holder Series\u003c\/td\u003e\n\u003ctd\u003eL60030C, LPSC\/LFPSC Touch-Safe, LEC, 571\/572\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e9 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-9 provides a 9 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 9000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings support protective-device selection based on circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design accommodates temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit events. Rejection-style construction helps prevent installation of fuses with insufficient voltage or interrupting ratings when used with corresponding rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-9 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-9?\u003c\/strong\u003e\u003cbr\u003eIt is a 9 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR009. The product marking is KLDR 9A, and KLDR-9 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 9 amperes, equivalent to 9000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-9 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-9 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-9 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 73.40 A²s and a total clearing I²t of 1,334 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These figures apply specifically to KLDR009 and should not be substituted with values for the 8 A or 10 A versions.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected fuse holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-9 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and its datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-9?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-9 or KLDR009 designation, 9 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR009.TXP for a manufacturer 10-piece pack and KLDR009.HXP for a 100-piece pack; these ordering codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902426349647,"sku":"LL1-LI-KLDR-9*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902426382415,"sku":"LL1-LI-KLDR-9*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902426415183,"sku":"LL1-LI-KLDR-9*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902426447951,"sku":"LL1-LI-KLDR-9*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-1-6_10-01.jpg?v=1793173072"},{"product_id":"littelfuse-kldr-10-fuse","title":"Littelfuse KLDR-10 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#fff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,.08);--shadow-hover:0 16px 36px rgba(8,79,124,.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 34px;position:relative;isolation:isolate;overflow:hidden;color:var(--text-main);line-height:1.75;-webkit-font-smoothing:antialiased}.nxs-industrial-product-page 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e10 A (10000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e10 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-10 provides a 10 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 10000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings support protective-device selection based on circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design accommodates temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The available prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit events. Its rejection feature helps prevent installation of unsuitable fuses with lower voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-10 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-10?\u003c\/strong\u003e\u003cbr\u003eIt is a 10 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR010. The product marking is KLDR 10A, and KLDR-10 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 10 amperes, equivalent to 10000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-10 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-10 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-10 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 132.0 A²s and a total clearing I²t of 934.8 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR010 and must not be substituted with those for the 9 A or 12 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-10 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the manufacturer's datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-10?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-10 or KLDR010 designation, 10 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR010.TXP for a manufacturer 10-piece pack and KLDR010.HXP for a 100-piece pack; these ordering codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902461902927,"sku":"LL1-LI-KLDR-10*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902461935695,"sku":"LL1-LI-KLDR-10*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902461968463,"sku":"LL1-LI-KLDR-10*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902462001231,"sku":"LL1-LI-KLDR-10*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-4-01.jpg?v=1793176325"},{"product_id":"littelfuse-kldr-12-fuse","title":"Littelfuse KLDR-12 Class CC Time-Delay 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 12A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e12 A (12000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 100% Rated Current\u003c\/td\u003e\n\u003ctd\u003eTemperature Stabilization (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e154.7 A²s (Manufacturer Electrical Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e1,723 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e12 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-12 provides a 12 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 12000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings support protective-device selection based on circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design accommodates temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive components. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The available prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit events. Its rejection feature helps prevent installation of unsuitable fuses with lower voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-12 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-12?\u003c\/strong\u003e\u003cbr\u003eIt is a 12 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR012. The product marking is KLDR 12A, and KLDR-12 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 12 amperes, equivalent to 12000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-12 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-12 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-12 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 154.7 A²s and a total clearing I²t of 1,723 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR012 and must not be substituted with those for the 10 A or 15 A models.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-12 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the manufacturer's datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-12?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-12 or KLDR012 designation, 12 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR012.TXP for a manufacturer 10-piece pack and KLDR012.HXP for a 100-piece pack; these ordering codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902481596495,"sku":"LL1-LI-KLDR-12*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902481629263,"sku":"LL1-LI-KLDR-12*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902481662031,"sku":"LL1-LI-KLDR-12*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902481694799,"sku":"LL1-LI-KLDR-12*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-3-1_2-01.jpg?v=1793176013"},{"product_id":"littelfuse-kldr-15-fuse","title":"Littelfuse KLDR-15 Class CC Time-Delay 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e15 A (15000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Type\u003c\/td\u003e\n\u003ctd\u003eCurrent-Limiting Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e200 kA RMS Symmetrical at 600 VAC (200,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Interrupting Rating\u003c\/td\u003e\n\u003ctd\u003e20 kA at 300 VDC (20,000 A, Manufacturer Self-Certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 100% Rated Current\u003c\/td\u003e\n\u003ctd\u003eTemperature Stabilization (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 135% Rated Current\u003c\/td\u003e\n\u003ctd\u003e60 Minutes Maximum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening Time at 200% Rated Current\u003c\/td\u003e\n\u003ctd\u003e12 Seconds Minimum (UL Requirement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePre-Arcing I²t\u003c\/td\u003e\n\u003ctd\u003e200.5 A²s (Manufacturer Electrical Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Clearing I²t\u003c\/td\u003e\n\u003ctd\u003e2,248 A²s (Manufacturer 200 kA Test Condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003eClass CC Rejection-Style Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eMelamine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Configuration\u003c\/td\u003e\n\u003ctd\u003eFerrule Ends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial Feature\u003c\/td\u003e\n\u003ctd\u003eRejection Capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Weight\u003c\/td\u003e\n\u003ctd\u003e8.62 g (0.019 lb, Manufacturer Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible Class CC Fuse Holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 10-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR015.TXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Ordering Number, 100-Pack\u003c\/td\u003e\n\u003ctd\u003eKLDR015.HXP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 10-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879273 (Manufacturer Datasheet Code)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC, Manufacturer 100-Pack\u003c\/td\u003e\n\u003ctd\u003e07945879316 (Manufacturer Datasheet Code)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-4 Class CC, File E81895 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, File LR29862 (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCE Compliance\u003c\/td\u003e\n\u003ctd\u003eCE Declaration Referenced in Manufacturer Datasheet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoHS Compliance\u003c\/td\u003e\n\u003ctd\u003eRoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eMexico (Manufacturer Datasheet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Fuse Holder Series\u003c\/td\u003e\n\u003ctd\u003eL60030C, LPSC\/LFPSC Touch-Safe, LEC, 571\/572\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e15 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-15 provides a 15 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings support protective-device selection according to the circuit operating voltage and prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce thermal and magnetic effects during short-circuit events. Rejection-style construction helps prevent installation of fuses having insufficient voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-15 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-15?\u003c\/strong\u003e\u003cbr\u003eIt is a 15 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR015. The product marking is KLDR 15A, and KLDR-15 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 15 amperes, equivalent to 15000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-15 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-15 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-15 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 200.5 A²s and a total clearing I²t of 2,248 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR015 and must not be substituted with those for the 12 A or 17.5 A versions.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-15 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for the applicable AC ratings. The series is RoHS compliant, and the manufacturer's datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-15?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-15 or KLDR015 designation, 15 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR015.TXP for a manufacturer 10-piece pack and KLDR015.HXP for a 100-piece pack; these ordering codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902501388367,"sku":"LL1-LI-KLDR-15*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902501421135,"sku":"LL1-LI-KLDR-15*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902501453903,"sku":"LL1-LI-KLDR-15*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902501486671,"sku":"LL1-LI-KLDR-15*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-4-01.jpg?v=1793176325"},{"product_id":"littelfuse-kldr-20-fuse","title":"Littelfuse KLDR-20 Class CC Time-Delay Fuse","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-line:#c9dce9;--surface:#fff;--surface-soft:#f7fbfe;--text-main:#173042;--shadow-soft:0 10px 30px rgba(8,47,73,.08);--shadow-hover:0 16px 36px rgba(8,79,124,.15);--radius-lg:14px;--radius-md:10px}.nxs-industrial-product-page,.nxs-industrial-product-page *{margin:0;padding:0;box-sizing:border-box;font-family:Arial,Helvetica,sans-serif}.nxs-industrial-product-page{background-color:#f3f8fb;background-image:linear-gradient(180deg,#eef6fb 0,#f7fafc 320px,#eef3f7 100%),linear-gradient(rgba(15,110,168,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(15,110,168,.025) 1px,transparent 1px);background-size:auto,34px 34px,34px 34px;position:relative;isolation:isolate;overflow:hidden;color:var(--text-main);line-height:1.75;-webkit-font-smoothing:antialiased}.nxs-industrial-product-page 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e20 A (20000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e20 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-20 provides a 20 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its 20000 mA rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings support protective-device selection based on circuit operating voltage and available prospective short-circuit current.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay design helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. The prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects during short-circuit events. Rejection-style construction helps prevent installation of fuses with insufficient voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-20 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-20?\u003c\/strong\u003e\u003cbr\u003eIt is a 20 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR020. The product marking is KLDR 20A, and KLDR-20 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 20 amperes, equivalent to 20000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The operating circuit voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-20 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-20 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-20 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 123.8 A²s and a total clearing I²t of 1,363 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR020 and must not be substituted with those for the 17.5 A or 25 A versions.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-20 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and the manufacturer's datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-20?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-20 or KLDR020 designation, 20 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR020.TXP for a manufacturer 10-piece pack and KLDR020.HXP for a 100-piece pack; these ordering codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"1PCS","offer_id":67902519902287,"sku":"LL1-LI-KLDR-20*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902519935055,"sku":"LL1-LI-KLDR-20*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67902519967823,"sku":"LL1-LI-KLDR-20*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902520000591,"sku":"LL1-LI-KLDR-20*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-2-01.jpg?v=1793173481"},{"product_id":"littelfuse-kldr-25-fuse","title":"Littelfuse KLDR-25 Class CC Time-Delay 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*::before,.nxs-industrial-product-page *::after{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eLittelfuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eKLDR-25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Catalog Number\u003c\/td\u003e\n\u003ctd\u003eKLDR025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Marking\u003c\/td\u003e\n\u003ctd\u003eKLDR 25A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eClass CC Time-Delay Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003ePOWR-GARD KLDR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e25 A (25000 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e600 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e300 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Class\u003c\/td\u003e\n\u003ctd\u003eUL Class CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Characteristic\u003c\/td\u003e\n\u003ctd\u003eTime-Delay (Slow-Blow)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.3 x 38.1 mm (0.41 x 1.50 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e25 A Current Rating\u003c\/h3\u003e\n\u003cp\u003eThe Littelfuse KLDR-25 provides a 25 ampere current rating for appropriately specified industrial control circuits, control transformers and inductive electrical equipment. Its rating supports applications requiring Class CC time-delay overcurrent protection.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e600 VAC and 300 VDC Ratings\u003c\/h3\u003e\n\u003cp\u003eRated for compatible AC circuits up to 600 VAC and DC circuits up to 300 VDC. Separate AC and DC ratings support protective-device selection according to the operating voltage and prospective short-circuit current of the protected circuit.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive loads. The applicable UL requirement specifies a minimum opening time of 12 seconds at 200% of rated current rather than a fixed clearing time.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eHigh Interrupting Ratings\u003c\/h3\u003e\n\u003cp\u003eProvides a 200 kA RMS symmetrical AC interrupting rating at 600 VAC and a separate 20 kA DC interrupting rating at 300 VDC. Littelfuse identifies the DC interrupting rating as self-certified. Prospective fault current must remain within the applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCurrent-Limiting Class CC Protection\u003c\/h3\u003e\n\u003cp\u003eThe current-limiting construction helps reduce heating and magnetic effects associated with short-circuit currents. Rejection-style construction helps prevent installation of fuses having lower voltage or interrupting ratings when used with compatible rejection-type fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Industrial Cartridge\u003c\/h3\u003e\n\u003cp\u003eFeatures a melamine body, nickel-plated bronze end caps and a nominal 10.3 x 38.1 mm cartridge format. Compatible mounting accessories include appropriately rated Littelfuse L60030C, LPSC\/LFPSC, LEC and 571\/572 fuse holder families.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial control transformer protection\u003c\/li\u003e\n\u003cli\u003eSolenoid circuit overcurrent protection\u003c\/li\u003e\n\u003cli\u003eInductive industrial control circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels requiring Class CC fuses\u003c\/li\u003e\n\u003cli\u003eCompatible motor branch circuits with IEC motor controllers\u003c\/li\u003e\n\u003cli\u003eMotor control circuits using suitable NEMA contactors\u003c\/li\u003e\n\u003cli\u003eCompatible 600 VAC and 300 VDC control circuits\u003c\/li\u003e\n\u003cli\u003eExact-rating replacement in compatible Class CC fuse holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the Littelfuse KLDR-25 Class CC Time-Delay Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods. Please verify the required model, current rating and purchase quantity before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Littelfuse KLDR-25?\u003c\/strong\u003e\u003cbr\u003eIt is a 25 A Class CC time-delay, current-limiting cartridge fuse from the Littelfuse POWR-GARD KLDR series, designed for compatible control transformers, solenoids and industrial control applications.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the manufacturer catalog number?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer catalog number is KLDR025. The product marking is KLDR 25A, and KLDR-25 is the corresponding current-rating designation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating?\u003c\/strong\u003e\u003cbr\u003eThe fuse is rated for 25 amperes, equivalent to 25000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC voltage ratings?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies 600 VAC and 300 VDC. The circuit operating voltage must remain within the applicable AC or DC rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the AC and DC interrupting ratings?\u003c\/strong\u003e\u003cbr\u003eThe AC interrupting rating is 200,000 amperes RMS symmetrical at 600 VAC. The DC interrupting rating is 20,000 amperes at 300 VDC and is identified by Littelfuse as self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-25 a time-delay or fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eKLDR-25 is a time-delay fuse. The KLDR series is designed to accommodate temporary magnetizing inrush currents associated with control transformers, solenoids and similar inductive equipment.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes KLDR-25 open in exactly 12 seconds at twice its rated current?\u003c\/strong\u003e\u003cbr\u003eNo. The applicable UL requirement specifies an opening time of at least 12 seconds at 200% of rated current. This is a minimum requirement rather than a fixed opening time. Consult the manufacturer's time-current curves for application-specific protection analysis.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the pre-arcing and total clearing I²t values?\u003c\/strong\u003e\u003cbr\u003eLittelfuse specifies a pre-arcing I²t of 226.0 A²s and a total clearing I²t of 1,710 A²s. The total clearing value is published for the manufacturer's 200 kA test condition. These values apply specifically to KLDR025 and must not be substituted with those for the 20 A or 30 A versions.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions?\u003c\/strong\u003e\u003cbr\u003eThe nominal cartridge dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 0.41 inch by 1.50 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and fuse holders are used?\u003c\/strong\u003e\u003cbr\u003eThe KLDR series uses a melamine body with nickel-plated bronze caps. Littelfuse identifies compatible holder families including L60030C, LPSC\/LFPSC, LEC and 571\/572. Confirm the electrical and mechanical compatibility of the selected holder before installation.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs KLDR-25 UL listed and RoHS compliant?\u003c\/strong\u003e\u003cbr\u003eLittelfuse identifies the KLDR series as UL Listed under file E81895 and CSA Certified under file LR29862 for applicable AC ratings. The series is RoHS compliant, and the manufacturer's datasheet references a CE declaration. The DC interrupting rating is manufacturer self-certified.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering KLDR-25?\u003c\/strong\u003e\u003cbr\u003eConfirm the KLDR-25 or KLDR025 designation, 25 A current rating, applicable 600 VAC or 300 VDC circuit requirement, AC or DC interrupting capacity, time-delay characteristics, Class CC fuse-holder compatibility and purchase quantity. Littelfuse lists KLDR025.TXP for a manufacturer 10-piece pack and KLDR025.HXP for a 100-piece pack; these ordering codes do not determine the quantity supplied by an individual store listing.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"10PCS","offer_id":67902606868559,"sku":"LL1-LI-KLDR-25*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67902606901327,"sku":"LL1-LI-KLDR-25*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"1PCS","offer_id":67902606934095,"sku":"LL1-LI-KLDR-25*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67902606966863,"sku":"LL1-LI-KLDR-25*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/KLDR-5-01.jpg?v=1793176855"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/collections\/KLDR-4-01.jpg?v=1793613718","url":"https:\/\/yunshuotrade.com\/collections\/littelfuse-kldr-series-fuses.oembed?page=2","provider":"yunshuotrade","version":"1.0","type":"link"}