{"product_id":"littelfuse-flnr400-class-rk5-fuse-400a-250v-time-delay-fuse","title":"Littelfuse FLNR400 Class RK5 Fuse – 400A – 250V Time-Delay Fuse","description":"\u003cp data-start=\"90\" data-end=\"557\"\u003eThe Littelfuse FLNR400 is a 400 Amp Class RK5 dual-element time-delay fuse designed for industrial and commercial electrical distribution systems. Part of the FLNR series, this knife-blade fuse provides dependable overload and short-circuit protection for feeders, transformers, motors, and other power distribution equipment. Its time-delay characteristics allow temporary inrush currents to pass without nuisance opening while maintaining reliable fault protection.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1judnlb\" data-start=\"564\" data-end=\"585\"\u003eElectrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"586\" data-end=\"734\"\u003e\n\u003cli data-section-id=\"1oth10n\" data-start=\"586\" data-end=\"614\"\u003eCurrent Rating: 400 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1s8cdo9\" data-start=\"615\" data-end=\"646\"\u003eMaximum AC Voltage: 250 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1bhmmrc\" data-start=\"647\" data-end=\"678\"\u003eMaximum DC Voltage: 125 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"1x6t7xi\" data-start=\"679\" data-end=\"734\"\u003eInterrupting Rating:\n\u003cul data-start=\"706\" data-end=\"734\"\u003e\n\u003cli data-section-id=\"1uz2u2b\" data-start=\"706\" data-end=\"719\"\u003e300 kA AC\u003c\/li\u003e\n\u003cli data-section-id=\"672013\" data-start=\"722\" data-end=\"734\"\u003e20 kA DC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"741\" data-end=\"763\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"764\" data-end=\"950\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"764\" data-end=\"792\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"1pij6tc\" data-start=\"793\" data-end=\"820\"\u003eCatalog Number: FLNR400\u003c\/li\u003e\n\u003cli data-section-id=\"3zxftr\" data-start=\"821\" data-end=\"837\"\u003eSeries: FLNR\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"838\" data-end=\"857\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003cli data-section-id=\"soa6gr\" data-start=\"858\" data-end=\"892\"\u003eConstruction Type: Knife-Blade\u003c\/li\u003e\n\u003cli data-section-id=\"jo8dmo\" data-start=\"893\" data-end=\"931\"\u003eFuse Type: Dual Element Time-Delay\u003c\/li\u003e\n\u003cli data-section-id=\"q4hlgv\" data-start=\"932\" data-end=\"950\"\u003eIndicating: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"957\" data-end=\"987\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"988\" data-end=\"1244\"\u003e\n\u003cli data-section-id=\"10on5wt\" data-start=\"988\" data-end=\"1024\"\u003eTime-delay (slow-blow) operation\u003c\/li\u003e\n\u003cli data-section-id=\"19w665b\" data-start=\"1025\" data-end=\"1059\"\u003eDual-element fuse construction\u003c\/li\u003e\n\u003cli data-section-id=\"1608z5w\" data-start=\"1060\" data-end=\"1110\"\u003eProvides overload and short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"tzl6rz\" data-start=\"1111\" data-end=\"1184\"\u003eAccommodates temporary motor starting and transformer inrush currents\u003c\/li\u003e\n\u003cli data-section-id=\"1b8gmg0\" data-start=\"1185\" data-end=\"1244\"\u003eHigh interrupting capacity for industrial power systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1251\" data-end=\"1276\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1277\" data-end=\"1482\"\u003e\n\u003cli data-section-id=\"cgsz4i\" data-start=\"1277\" data-end=\"1308\"\u003eKnife-blade terminal design\u003c\/li\u003e\n\u003cli data-section-id=\"1lrgeqr\" data-start=\"1309\" data-end=\"1346\"\u003eNon-indicating fuse configuration\u003c\/li\u003e\n\u003cli data-section-id=\"1nd62m7\" data-start=\"1347\" data-end=\"1407\"\u003eIndustrial-grade construction for demanding applications\u003c\/li\u003e\n\u003cli data-section-id=\"1pocn2x\" data-start=\"1408\" data-end=\"1482\"\u003eDesigned for reliable performance in electrical distribution equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"1489\" data-end=\"1517\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1518\" data-end=\"1710\"\u003e\n\u003cli data-section-id=\"1yglfdu\" data-start=\"1518\" data-end=\"1565\"\u003eMounting Method: Fuse Block \/ Clip \/ Holder\u003c\/li\u003e\n\u003cli data-section-id=\"1au6kun\" data-start=\"1566\" data-end=\"1633\"\u003eCompatible with standard Class RK5 fuse holders and fuse blocks\u003c\/li\u003e\n\u003cli data-section-id=\"9ziazr\" data-start=\"1634\" data-end=\"1710\"\u003eSuitable for switchboards, panelboards, and industrial control equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1717\" data-end=\"1733\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1734\" data-end=\"1925\"\u003e\n\u003cli data-section-id=\"fz1udj\" data-start=\"1734\" data-end=\"1769\"\u003eMotor branch circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"fknz5c\" data-start=\"1770\" data-end=\"1796\"\u003eTransformer protection\u003c\/li\u003e\n\u003cli data-section-id=\"gsgjc0\" data-start=\"1797\" data-end=\"1835\"\u003eIndustrial machinery and equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1b02wdy\" data-start=\"1836\" data-end=\"1882\"\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"1y9e76g\" data-start=\"1883\" data-end=\"1925\"\u003eFeeder and branch circuit applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"1932\" data-end=\"1948\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"1949\" data-end=\"2076\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"1949\" data-end=\"1977\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"1pij6tc\" data-start=\"1978\" data-end=\"2005\"\u003eCatalog Number: FLNR400\u003c\/li\u003e\n\u003cli data-section-id=\"6027wp\" data-start=\"2006\" data-end=\"2039\"\u003eProduct Type: Time-Delay Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"3zxftr\" data-start=\"2040\" data-end=\"2056\"\u003eSeries: FLNR\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"2057\" data-end=\"2076\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Littelfuse","offers":[{"title":"NEW","offer_id":48459347689721,"sku":"FLNR400","price":85.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1111_4f300e6b-ec80-4d2a-b152-110f20ec8aed.jpg?v=1780162781","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-flnr400-class-rk5-fuse-400a-250v-time-delay-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}