{"product_id":"bussmann-fnq-25-fuse","title":"Bussmann FNQ-25 Time-Delay Midget Fuse 25A 500VAC","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\u003eBussmann (Eaton)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eFNQ-25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eTime-Delay Midget Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Series\u003c\/td\u003e\n\u003ctd\u003eFNQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e500 VAC\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\u003eSupplemental Cartridge Fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Format\u003c\/td\u003e\n\u003ctd\u003e5AG Midget Fuse\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 (13\/32 x 1-1\/2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eRequires Compatible Fuse Holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Style\u003c\/td\u003e\n\u003ctd\u003eFerrule End x Ferrule End\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Indication\u003c\/td\u003e\n\u003ctd\u003eNon-Indicating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterrupting Rating at 500 VAC\u003c\/td\u003e\n\u003ctd\u003e10 kAIC (10,000 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Body Construction\u003c\/td\u003e\n\u003ctd\u003eFiber Tube (FNQ Series Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap Material\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Bronze (Eaton Product Specification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries End Cap Construction\u003c\/td\u003e\n\u003ctd\u003eNickel-Plated Brass (FNQ Technical Data 1012)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries Color Code\u003c\/td\u003e\n\u003ctd\u003eOrange (500 VAC Maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e051712786652\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL Approval\u003c\/td\u003e\n\u003ctd\u003eUL Listed, UL 248-14, File E19180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA Approval\u003c\/td\u003e\n\u003ctd\u003eCSA Certified, C22.2 No. 248.14, Class 1422-01, File 53787\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eCE Marked; RoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Classification\u003c\/td\u003e\n\u003ctd\u003eSupplemental Overcurrent Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Reference\u003c\/td\u003e\n\u003ctd\u003eEaton Bussmann FNQ Technical Data 1012\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\u003eRated at 25 amperes, the FNQ-25 provides supplemental overcurrent protection for appropriately specified industrial electrical control circuits, motor control transformers and compatible equipment.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e500 VAC Voltage Rating\u003c\/h3\u003e\n\u003cp\u003eDesigned for compatible AC circuits operating at or below its published maximum voltage rating of 500 VAC, including suitably designed 480 VAC control transformer primary circuits.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eTime-Delay Operation\u003c\/h3\u003e\n\u003cp\u003eThe time-delay characteristic helps accommodate temporary magnetizing inrush currents associated with motor control transformers and compatible inductive loads. Fuse selection should follow Eaton's published time-current characteristics.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e10 kA Interrupting Rating\u003c\/h3\u003e\n\u003cp\u003eProvides a manufacturer-specified interrupting rating of 10,000 amperes at 500 VAC. The available short-circuit current at the installation must not exceed the fuse's applicable interrupting capacity.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact Midget Cartridge Design\u003c\/h3\u003e\n\u003cp\u003eUses a cylindrical 5AG midget cartridge with nominal dimensions of 10.3 mm in diameter and 38.1 mm in length for installation in appropriately rated and dimensionally compatible fuse holders.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eIndustrial Ferrule Construction\u003c\/h3\u003e\n\u003cp\u003eCombines non-indicating operation with ferrule end connections. Eaton's FNQ-25 product specification identifies nickel-plated bronze end caps, while FNQ series technical literature describes fiber tube construction and nickel-plated brass end caps.\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\u003eMotor control transformer supplemental protection\u003c\/li\u003e\n\u003cli\u003eCompatible 480 VAC control transformer primary circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial AC control circuits with temporary inrush currents\u003c\/li\u003e\n\u003cli\u003eIndustrial electrical control panels and machinery\u003c\/li\u003e\n\u003cli\u003eElectrical equipment requiring a 25 A time-delay fuse\u003c\/li\u003e\n\u003cli\u003eCompatible lighting circuit supplemental protection\u003c\/li\u003e\n\u003cli\u003eCompatible metering and instrumentation circuits\u003c\/li\u003e\n\u003cli\u003eIndustrial equipment maintenance and specified fuse replacement\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 Bussmann FNQ-25 Time-Delay Midget 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\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Bussmann FNQ-25?\u003c\/strong\u003e\u003cbr\u003eIt is a 25 A, 500 VAC time-delay midget cartridge fuse from the Eaton Bussmann FNQ series, intended for supplemental overcurrent protection in compatible industrial electrical circuits.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWho manufactures FNQ-25?\u003c\/strong\u003e\u003cbr\u003eFNQ-25 belongs to the Eaton Bussmann fuse range. Its manufacturer catalog number is FNQ-25.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated current?\u003c\/strong\u003e\u003cbr\u003eThe rated current is 25 amperes, equivalent to 25,000 milliamperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the AC voltage rating?\u003c\/strong\u003e\u003cbr\u003eThe published maximum AC voltage rating is 500 VAC. The application circuit must remain within the fuse's applicable voltage rating.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eIs FNQ-25 a fast-acting fuse?\u003c\/strong\u003e\u003cbr\u003eNo. FNQ-25 is a time-delay fuse designed for compatible circuits with temporary inrush currents, including motor control transformer applications. Its suitability should be evaluated using Eaton's published time-current curves.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the interrupting rating at 500 VAC?\u003c\/strong\u003e\u003cbr\u003eEaton specifies an interrupting rating of 10 kA at 500 VAC for FNQ-25, equivalent to 10,000 amperes.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of FNQ-25?\u003c\/strong\u003e\u003cbr\u003eThe nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, approximately 13\/32 inch by 1-1\/2 inches.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDoes FNQ-25 include a blown-fuse indicator?\u003c\/strong\u003e\u003cbr\u003eNo. FNQ-25 is a non-indicating cartridge fuse without a built-in visual blown-fuse indicator.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials and terminals does FNQ-25 use?\u003c\/strong\u003e\u003cbr\u003eFNQ-25 uses ferrule-to-ferrule connections. Eaton's individual product specification identifies nickel-plated bronze end caps, while FNQ series technical literature describes fiber tube construction and nickel-plated brass end caps. Confirm the precise end-cap alloy with Eaton if material composition is critical.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan FNQ-25 replace an FNQ-R-25 fuse?\u003c\/strong\u003e\u003cbr\u003eDo not assume these models are interchangeable. FNQ-25 is a 500 VAC supplemental fuse with a 10 kA interrupting rating, whereas FNQ-R-25 belongs to the 600 VAC Class CC fuse series with different protection classifications, interrupting ratings and installation requirements.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eCan FNQ-25 be used for branch-circuit protection?\u003c\/strong\u003e\u003cbr\u003eFNQ-25 is intended for supplemental overcurrent protection. Applications requiring branch-circuit protection must use an appropriately classified and rated protective device.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the exact FNQ-25 model number, 25 A current rating, 500 VAC voltage rating, 10 kA interrupting rating, time-delay characteristics, cartridge dimensions and compatibility with the intended fuse holder. Consult Eaton Bussmann FNQ Technical Data 1012 for application specifications.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Eaton Bussmann","offers":[{"title":"1PCS","offer_id":67872452706383,"sku":"LL1-BSM-FNQ-25*1","price":6.98,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":67872452739151,"sku":"LL1-BSM-FNQ-25*5","price":27.92,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":67872452771919,"sku":"LL1-BSM-FNQ-25*10","price":48.86,"currency_code":"USD","in_stock":true},{"title":"20PCS","offer_id":67872452804687,"sku":"LL1-BSM-FNQ-25*20","price":83.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/FNQ-1_10-01-_02.jpg?v=1792985803","url":"https:\/\/yunshuotrade.com\/products\/bussmann-fnq-25-fuse","provider":"yunshuotrade","version":"1.0","type":"link"}