{"product_id":"littelfuse-flnr400id-class-rk5-fuse-400a-250v-time-delay-indicating-fuse","title":"Littelfuse FLNR400ID Class RK5 Fuse – 400A – 250V Time-Delay Indicating Fuse","description":"\u003cp data-start=\"103\" data-end=\"598\"\u003eThe Littelfuse FLNR400ID is a 400 Amp Class RK5 dual-element time-delay fuse designed for industrial and commercial electrical protection applications. Part of the FLNR_ID series, this fuse incorporates a built-in blown-fuse indicator that provides quick visual status identification, reducing troubleshooting and maintenance time. Its dual-element construction delivers reliable overload and short-circuit protection while accommodating temporary motor starting and transformer inrush currents.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1judnlb\" data-start=\"605\" data-end=\"626\"\u003eElectrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"627\" data-end=\"775\"\u003e\n\u003cli data-section-id=\"1oth10n\" data-start=\"627\" data-end=\"655\"\u003eCurrent Rating: 400 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1s8cdo9\" data-start=\"656\" data-end=\"687\"\u003eMaximum AC Voltage: 250 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1bhmmrc\" data-start=\"688\" data-end=\"719\"\u003eMaximum DC Voltage: 125 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"1x6t7xi\" data-start=\"720\" data-end=\"775\"\u003eInterrupting Rating:\n\u003cul data-start=\"747\" data-end=\"775\"\u003e\n\u003cli data-section-id=\"1uz2u2b\" data-start=\"747\" data-end=\"760\"\u003e300 kA AC\u003c\/li\u003e\n\u003cli data-section-id=\"672013\" data-start=\"763\" data-end=\"775\"\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=\"782\" data-end=\"804\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"805\" data-end=\"997\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"805\" data-end=\"833\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"7fgr1p\" data-start=\"834\" data-end=\"863\"\u003eCatalog Number: FLNR400ID\u003c\/li\u003e\n\u003cli data-section-id=\"1hrpswd\" data-start=\"864\" data-end=\"883\"\u003eSeries: FLNR_ID\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"884\" data-end=\"903\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003cli data-section-id=\"soa6gr\" data-start=\"904\" data-end=\"938\"\u003eConstruction Type: Knife-Blade\u003c\/li\u003e\n\u003cli data-section-id=\"jo8dmo\" data-start=\"939\" data-end=\"977\"\u003eFuse Type: Dual Element Time-Delay\u003c\/li\u003e\n\u003cli data-section-id=\"a2fgkh\" data-start=\"978\" data-end=\"997\"\u003eIndicating: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"1004\" data-end=\"1034\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"1035\" data-end=\"1308\"\u003e\n\u003cli data-section-id=\"10on5wt\" data-start=\"1035\" data-end=\"1071\"\u003eTime-delay (slow-blow) operation\u003c\/li\u003e\n\u003cli data-section-id=\"d6wcog\" data-start=\"1072\" data-end=\"1100\"\u003eDual-element fuse design\u003c\/li\u003e\n\u003cli data-section-id=\"1608z5w\" data-start=\"1101\" data-end=\"1151\"\u003eProvides overload and short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"1o56qoj\" data-start=\"1152\" data-end=\"1235\"\u003eAllows temporary motor and transformer inrush currents without nuisance opening\u003c\/li\u003e\n\u003cli data-section-id=\"c2lga\" data-start=\"1236\" data-end=\"1308\"\u003eHigh interrupting capacity for industrial power distribution systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1315\" data-end=\"1340\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1341\" data-end=\"1524\"\u003e\n\u003cli data-section-id=\"51zcjh\" data-start=\"1341\" data-end=\"1378\"\u003eKnife-blade terminal construction\u003c\/li\u003e\n\u003cli data-section-id=\"1pq47kc\" data-start=\"1379\" data-end=\"1419\"\u003eVisual blown-fuse indication feature\u003c\/li\u003e\n\u003cli data-section-id=\"7zu8p\" data-start=\"1420\" data-end=\"1473\"\u003eIndustrial-duty design for demanding applications\u003c\/li\u003e\n\u003cli data-section-id=\"cqmrlq\" data-start=\"1474\" data-end=\"1524\"\u003eDurable construction for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"1531\" data-end=\"1559\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1560\" data-end=\"1752\"\u003e\n\u003cli data-section-id=\"1yglfdu\" data-start=\"1560\" data-end=\"1607\"\u003eMounting Method: Fuse Block \/ Clip \/ Holder\u003c\/li\u003e\n\u003cli data-section-id=\"1au6kun\" data-start=\"1608\" data-end=\"1675\"\u003eCompatible with standard Class RK5 fuse holders and fuse blocks\u003c\/li\u003e\n\u003cli data-section-id=\"9ziazr\" data-start=\"1676\" data-end=\"1752\"\u003eSuitable for switchboards, panelboards, and industrial control equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1759\" data-end=\"1775\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1776\" data-end=\"1965\"\u003e\n\u003cli data-section-id=\"fz1udj\" data-start=\"1776\" data-end=\"1811\"\u003eMotor branch circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"fknz5c\" data-start=\"1812\" data-end=\"1838\"\u003eTransformer protection\u003c\/li\u003e\n\u003cli data-section-id=\"gsgjc0\" data-start=\"1839\" data-end=\"1877\"\u003eIndustrial machinery and equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1b02wdy\" data-start=\"1878\" data-end=\"1924\"\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"14gqy7m\" data-start=\"1925\" data-end=\"1965\"\u003eFeeder and branch circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"1972\" data-end=\"1988\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"1989\" data-end=\"2132\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"1989\" data-end=\"2017\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"7fgr1p\" data-start=\"2018\" data-end=\"2047\"\u003eCatalog Number: FLNR400ID\u003c\/li\u003e\n\u003cli data-section-id=\"wq1xpx\" data-start=\"2048\" data-end=\"2092\"\u003eProduct Type: Indicating Time-Delay Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"1hrpswd\" data-start=\"2093\" data-end=\"2112\"\u003eSeries: FLNR_ID\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"2113\" data-end=\"2132\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Littelfuse","offers":[{"title":"NEW","offer_id":48471260430585,"sku":"FLNR400ID","price":92.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1280_c0DRt0WQURX11wbk_839893df-4100-4ac1-ab2f-c2cd900bdb0b.jpg?v=1780325543","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-flnr400id-class-rk5-fuse-400a-250v-time-delay-indicating-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}