{"product_id":"littelfuse-flsr400id-class-rk5-fuse-400a-600v-time-delay-indicating-fuse","title":"Littelfuse FLSR400ID Class RK5 Fuse – 400A – 600V Time-Delay Indicating Fuse","description":"\u003cp data-start=\"103\" data-end=\"604\"\u003eThe Littelfuse FLSR400ID is a 400 Amp Class RK5 dual-element time-delay fuse designed for industrial and commercial electrical distribution systems. Part of the FLSR_ID series, this fuse features a built-in blown-fuse indicator that provides quick visual confirmation of fuse status, simplifying maintenance and reducing troubleshooting time. Its dual-element construction allows temporary motor starting and transformer inrush currents while delivering reliable overload and short-circuit protection.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1judnlb\" data-start=\"611\" data-end=\"632\"\u003eElectrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"633\" data-end=\"791\"\u003e\n\u003cli data-section-id=\"1oth10n\" data-start=\"633\" data-end=\"661\"\u003eCurrent Rating: 400 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1s2lsbc\" data-start=\"662\" data-end=\"693\"\u003eMaximum AC Voltage: 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"3p3ayl\" data-start=\"694\" data-end=\"725\"\u003eMaximum DC Voltage: 300 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"3fy0ud\" data-start=\"726\" data-end=\"791\"\u003eInterrupting Rating:\n\u003cul data-start=\"753\" data-end=\"791\"\u003e\n\u003cli data-section-id=\"5nvs4y\" data-start=\"753\" data-end=\"766\"\u003e200 kA AC\u003c\/li\u003e\n\u003cli data-section-id=\"1fmwdnp\" data-start=\"769\" data-end=\"791\"\u003e20 kA DC @ 300 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"798\" data-end=\"820\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"821\" data-end=\"1013\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"821\" data-end=\"849\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"bigx0w\" data-start=\"850\" data-end=\"879\"\u003eCatalog Number: FLSR400ID\u003c\/li\u003e\n\u003cli data-section-id=\"cwo91s\" data-start=\"880\" data-end=\"899\"\u003eSeries: FLSR_ID\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"900\" data-end=\"919\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003cli data-section-id=\"soa6gr\" data-start=\"920\" data-end=\"954\"\u003eConstruction Type: Knife-Blade\u003c\/li\u003e\n\u003cli data-section-id=\"jo8dmo\" data-start=\"955\" data-end=\"993\"\u003eFuse Type: Dual Element Time-Delay\u003c\/li\u003e\n\u003cli data-section-id=\"a2fgkh\" data-start=\"994\" data-end=\"1013\"\u003eIndicating: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"1020\" data-end=\"1050\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"1051\" data-end=\"1320\"\u003e\n\u003cli data-section-id=\"10on5wt\" data-start=\"1051\" data-end=\"1087\"\u003eTime-delay (slow-blow) operation\u003c\/li\u003e\n\u003cli data-section-id=\"19w665b\" data-start=\"1088\" data-end=\"1122\"\u003eDual-element fuse construction\u003c\/li\u003e\n\u003cli data-section-id=\"1608z5w\" data-start=\"1123\" data-end=\"1173\"\u003eProvides overload and short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"tzl6rz\" data-start=\"1174\" data-end=\"1247\"\u003eAccommodates temporary motor starting and transformer inrush currents\u003c\/li\u003e\n\u003cli data-section-id=\"c2lga\" data-start=\"1248\" data-end=\"1320\"\u003eHigh interrupting capacity for industrial power distribution systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1327\" data-end=\"1352\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1353\" data-end=\"1531\"\u003e\n\u003cli data-section-id=\"cgsz4i\" data-start=\"1353\" data-end=\"1384\"\u003eKnife-blade terminal design\u003c\/li\u003e\n\u003cli data-section-id=\"1pq47kc\" data-start=\"1385\" data-end=\"1425\"\u003eVisual blown-fuse indication feature\u003c\/li\u003e\n\u003cli data-section-id=\"1g889p5\" data-start=\"1426\" data-end=\"1485\"\u003eIndustrial-duty construction for demanding environments\u003c\/li\u003e\n\u003cli data-section-id=\"5tkcdg\" data-start=\"1486\" data-end=\"1531\"\u003eDesigned for reliable long-term operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"1538\" data-end=\"1566\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1567\" data-end=\"1787\"\u003e\n\u003cli data-section-id=\"1yglfdu\" data-start=\"1567\" data-end=\"1614\"\u003eMounting Method: Fuse Block \/ Clip \/ Holder\u003c\/li\u003e\n\u003cli data-section-id=\"1au6kun\" data-start=\"1615\" data-end=\"1682\"\u003eCompatible with standard Class RK5 fuse holders and fuse blocks\u003c\/li\u003e\n\u003cli data-section-id=\"18r6j0i\" data-start=\"1683\" data-end=\"1787\"\u003eSuitable for switchboards, panelboards, motor control centers, and industrial distribution equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1794\" data-end=\"1810\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1811\" data-end=\"2000\"\u003e\n\u003cli data-section-id=\"fz1udj\" data-start=\"1811\" data-end=\"1846\"\u003eMotor branch circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"fknz5c\" data-start=\"1847\" data-end=\"1873\"\u003eTransformer protection\u003c\/li\u003e\n\u003cli data-section-id=\"gsgjc0\" data-start=\"1874\" data-end=\"1912\"\u003eIndustrial machinery and equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1b02wdy\" data-start=\"1913\" data-end=\"1959\"\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"14gqy7m\" data-start=\"1960\" data-end=\"2000\"\u003eFeeder and branch circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"2007\" data-end=\"2023\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"2024\" data-end=\"2167\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"2024\" data-end=\"2052\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"bigx0w\" data-start=\"2053\" data-end=\"2082\"\u003eCatalog Number: FLSR400ID\u003c\/li\u003e\n\u003cli data-section-id=\"wq1xpx\" data-start=\"2083\" data-end=\"2127\"\u003eProduct Type: Indicating Time-Delay Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"cwo91s\" data-start=\"2128\" data-end=\"2147\"\u003eSeries: FLSR_ID\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"2148\" data-end=\"2167\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Littelfuse","offers":[{"title":"NEW","offer_id":48471744577785,"sku":"FLSR400ID","price":113.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1280_gASNT7sy5hJ14AWL_05b2ffb2-0b8f-419c-82c5-33af00826de7.jpg?v=1780344847","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-flsr400id-class-rk5-fuse-400a-600v-time-delay-indicating-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}