{"product_id":"littelfuse-kldr-1-1-2-fuse","title":"Littelfuse KLDR-1-1\/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-blue:#dcebf5;--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-1-1\/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","url":"https:\/\/yunshuotrade.com\/products\/littelfuse-kldr-1-1-2-fuse","provider":"yunshuotrade","version":"1.0","type":"link"}