{"product_id":"littelfuse-jtd400id-class-j-fuse-400a-600v-time-delay-indicating-fuse","title":"Littelfuse JTD400ID Class J Fuse – 400A – 600V Time-Delay Indicating Fuse","description":"\u003cp data-start=\"100\" data-end=\"598\"\u003eThe Littelfuse JTD400ID is a 400 Amp Class J time-delay fuse designed for high-capacity overcurrent and short-circuit protection in industrial and commercial electrical distribution systems. Part of the JTD_ID series, this POWR-PRO® fuse is engineered to tolerate temporary inrush currents from motors, transformers, and other inductive loads without nuisance opening. The built-in indicating feature provides a clear visual signal of a blown fuse, helping reduce downtime and simplify maintenance.\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=\"781\"\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=\"1s2lsbc\" data-start=\"656\" data-end=\"687\"\u003eMaximum AC Voltage: 600 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"a8i5rv\" data-start=\"688\" data-end=\"719\"\u003eMaximum DC Voltage: 500 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"86zdj7\" data-start=\"720\" data-end=\"781\"\u003eInterrupting Rating:\n\u003cul data-start=\"745\" data-end=\"781\"\u003e\n\u003cli data-section-id=\"e5qboy\" data-start=\"745\" data-end=\"756\"\u003e200 kA AC\u003c\/li\u003e\n\u003cli data-section-id=\"1m6b8gz\" data-start=\"759\" data-end=\"781\"\u003e20 kA DC @ 500 VDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"788\" data-end=\"810\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"811\" data-end=\"1029\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"811\" data-end=\"839\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"jndi01\" data-start=\"840\" data-end=\"868\"\u003eCatalog Number: JTD400ID\u003c\/li\u003e\n\u003cli data-section-id=\"1buoo0x\" data-start=\"869\" data-end=\"887\"\u003eSeries: JTD_ID\u003c\/li\u003e\n\u003cli data-section-id=\"1uncs7x\" data-start=\"888\" data-end=\"911\"\u003eFuse Class: Class J\u003c\/li\u003e\n\u003cli data-section-id=\"soa6gr\" data-start=\"912\" data-end=\"946\"\u003eConstruction Type: Knife-Blade\u003c\/li\u003e\n\u003cli data-section-id=\"1383xbz\" data-start=\"947\" data-end=\"982\"\u003eFuse Type: Time-Delay (Slo-Blo)\u003c\/li\u003e\n\u003cli data-section-id=\"1gst2xh\" data-start=\"983\" data-end=\"1009\"\u003eFamily: POWR-PRO® Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"a2fgkh\" data-start=\"1010\" data-end=\"1029\"\u003eIndicating: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"1036\" data-end=\"1066\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"1067\" data-end=\"1473\"\u003e\n\u003cli data-section-id=\"13lq0iz\" data-start=\"1067\" data-end=\"1148\"\u003eTime-delay design accommodates motor starting and transformer inrush currents\u003c\/li\u003e\n\u003cli data-section-id=\"1xephuk\" data-start=\"1149\" data-end=\"1199\"\u003eReliable overload and short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"1jttt1s\" data-start=\"1200\" data-end=\"1266\"\u003eReduces nuisance fuse operation in inductive load applications\u003c\/li\u003e\n\u003cli data-section-id=\"10ijpa9\" data-start=\"1267\" data-end=\"1340\"\u003eCurrent-limiting performance reduces let-through energy during faults\u003c\/li\u003e\n\u003cli data-section-id=\"1q916s8\" data-start=\"1341\" data-end=\"1404\"\u003eHigh interrupting capacity for demanding industrial systems\u003c\/li\u003e\n\u003cli data-section-id=\"b1ix0e\" data-start=\"1405\" data-end=\"1473\"\u003eVisual blown-fuse indication improves troubleshooting efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1480\" data-end=\"1505\"\u003eConstruction Features\u003c\/h3\u003e\n\u003cul data-start=\"1506\" data-end=\"1733\"\u003e\n\u003cli data-section-id=\"otg0xh\" data-start=\"1506\" data-end=\"1544\"\u003eCompact Class J knife-blade design\u003c\/li\u003e\n\u003cli data-section-id=\"19zuei3\" data-start=\"1545\" data-end=\"1604\"\u003eBuilt-in fuse indication for quick fault identification\u003c\/li\u003e\n\u003cli data-section-id=\"e8og92\" data-start=\"1605\" data-end=\"1667\"\u003eRugged industrial-grade construction for long service life\u003c\/li\u003e\n\u003cli data-section-id=\"11huo9l\" data-start=\"1668\" data-end=\"1733\"\u003eDesigned for high-performance electrical distribution systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"1740\" data-end=\"1768\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1769\" data-end=\"1973\"\u003e\n\u003cli data-section-id=\"o14hrv\" data-start=\"1769\" data-end=\"1809\"\u003eMounting Method: Fuse Block \/ Holder\u003c\/li\u003e\n\u003cli data-section-id=\"ms9ecs\" data-start=\"1810\" data-end=\"1870\"\u003eCompatible with standard Class J fuse holders and blocks\u003c\/li\u003e\n\u003cli data-section-id=\"e3brb2\" data-start=\"1871\" data-end=\"1973\"\u003eSuitable for switchboards, panelboards, motor control centers, and industrial distribution systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1980\" data-end=\"1996\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1997\" data-end=\"2193\"\u003e\n\u003cli data-section-id=\"oubiw3\" data-start=\"1997\" data-end=\"2015\"\u003eMotor circuits\u003c\/li\u003e\n\u003cli data-section-id=\"n7lx3w\" data-start=\"2016\" data-end=\"2057\"\u003eIndustrial power distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"x5ewh3\" data-start=\"2058\" data-end=\"2090\"\u003eSwitchboards and panelboards\u003c\/li\u003e\n\u003cli data-section-id=\"gwae0z\" data-start=\"2091\" data-end=\"2123\"\u003eMotor control centers (MCCs)\u003c\/li\u003e\n\u003cli data-section-id=\"1vme1xh\" data-start=\"2124\" data-end=\"2160\"\u003eTransformers and inductive loads\u003c\/li\u003e\n\u003cli data-section-id=\"q5377l\" data-start=\"2161\" data-end=\"2193\"\u003eBranch and feeder protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"2200\" data-end=\"2216\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"2217\" data-end=\"2344\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"2217\" data-end=\"2245\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"jndi01\" data-start=\"2246\" data-end=\"2274\"\u003eCatalog Number: JTD400ID\u003c\/li\u003e\n\u003cli data-section-id=\"1buoo0x\" data-start=\"2275\" data-end=\"2293\"\u003eSeries: JTD_ID\u003c\/li\u003e\n\u003cli data-section-id=\"1uncs7x\" data-start=\"2294\" data-end=\"2317\"\u003eFuse Class: Class J\u003c\/li\u003e\n\u003cli data-section-id=\"1gst2xh\" data-start=\"2318\" data-end=\"2344\"\u003eFamily: POWR-PRO® Fuse\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Littelfuse","offers":[{"title":"NEW","offer_id":48478000414969,"sku":"JTD400ID","price":218.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/333_92aebe0e-635d-4914-8ad9-1c04987a3576.jpg?v=1780422549","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-jtd400id-class-j-fuse-400a-600v-time-delay-indicating-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}