{"product_id":"littelfuse-flnr450-class-rk5-fuse-450a-250v-time-delay-fuse","title":"Littelfuse FLNR450 Class RK5 Fuse – 450A – 250V Time-Delay Fuse","description":"\u003cp data-start=\"90\" data-end=\"558\"\u003eThe Littelfuse FLNR450 is a 450 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 power distribution equipment. Its time-delay characteristics permit temporary inrush currents without nuisance opening while maintaining reliable fault interruption performance.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1judnlb\" data-start=\"565\" data-end=\"586\"\u003eElectrical Rating\u003c\/h3\u003e\n\u003cul data-start=\"587\" data-end=\"735\"\u003e\n\u003cli data-section-id=\"s7wma\" data-start=\"587\" data-end=\"615\"\u003eCurrent Rating: 450 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1s8cdo9\" data-start=\"616\" data-end=\"647\"\u003eMaximum AC Voltage: 250 VAC\u003c\/li\u003e\n\u003cli data-section-id=\"1bhmmrc\" data-start=\"648\" data-end=\"679\"\u003eMaximum DC Voltage: 125 VDC\u003c\/li\u003e\n\u003cli data-section-id=\"1x6t7xi\" data-start=\"680\" data-end=\"735\"\u003eInterrupting Rating:\n\u003cul data-start=\"707\" data-end=\"735\"\u003e\n\u003cli data-section-id=\"1uz2u2b\" data-start=\"707\" data-end=\"720\"\u003e300 kA AC\u003c\/li\u003e\n\u003cli data-section-id=\"672013\" data-start=\"723\" data-end=\"735\"\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=\"742\" data-end=\"764\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"765\" data-end=\"951\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"765\" data-end=\"793\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"1piojad\" data-start=\"794\" data-end=\"821\"\u003eCatalog Number: FLNR450\u003c\/li\u003e\n\u003cli data-section-id=\"3zxftr\" data-start=\"822\" data-end=\"838\"\u003eSeries: FLNR\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"839\" data-end=\"858\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003cli data-section-id=\"soa6gr\" data-start=\"859\" data-end=\"893\"\u003eConstruction Type: Knife-Blade\u003c\/li\u003e\n\u003cli data-section-id=\"jo8dmo\" data-start=\"894\" data-end=\"932\"\u003eFuse Type: Dual Element Time-Delay\u003c\/li\u003e\n\u003cli data-section-id=\"q4hlgv\" data-start=\"933\" data-end=\"951\"\u003eIndicating: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"krhh0r\" data-start=\"958\" data-end=\"988\"\u003eProtection Characteristics\u003c\/h3\u003e\n\u003cul data-start=\"989\" data-end=\"1235\"\u003e\n\u003cli data-section-id=\"10on5wt\" data-start=\"989\" data-end=\"1025\"\u003eTime-delay (slow-blow) operation\u003c\/li\u003e\n\u003cli data-section-id=\"19w665b\" data-start=\"1026\" data-end=\"1060\"\u003eDual-element fuse construction\u003c\/li\u003e\n\u003cli data-section-id=\"1608z5w\" data-start=\"1061\" data-end=\"1111\"\u003eProvides overload and short-circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"9lbwpg\" data-start=\"1112\" data-end=\"1175\"\u003eAccommodates motor starting and transformer inrush currents\u003c\/li\u003e\n\u003cli data-section-id=\"1b8gmg0\" data-start=\"1176\" data-end=\"1235\"\u003eHigh interrupting capacity for industrial power systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xldzoc\" data-start=\"1242\" data-end=\"1267\"\u003eConstruction Feature\u003c\/h3\u003e\n\u003cul data-start=\"1268\" data-end=\"1471\"\u003e\n\u003cli data-section-id=\"cgsz4i\" data-start=\"1268\" data-end=\"1299\"\u003eKnife-blade terminal design\u003c\/li\u003e\n\u003cli data-section-id=\"1lrgeqr\" data-start=\"1300\" data-end=\"1337\"\u003eNon-indicating fuse configuration\u003c\/li\u003e\n\u003cli data-section-id=\"1nd62m7\" data-start=\"1338\" data-end=\"1398\"\u003eIndustrial-grade construction for demanding applications\u003c\/li\u003e\n\u003cli data-section-id=\"1vtspkk\" data-start=\"1399\" data-end=\"1471\"\u003eDesigned for reliable operation in electrical distribution equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1dp59sz\" data-start=\"1478\" data-end=\"1506\"\u003eMounting \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul data-start=\"1507\" data-end=\"1699\"\u003e\n\u003cli data-section-id=\"1yglfdu\" data-start=\"1507\" data-end=\"1554\"\u003eMounting Method: Fuse Block \/ Clip \/ Holder\u003c\/li\u003e\n\u003cli data-section-id=\"1au6kun\" data-start=\"1555\" data-end=\"1622\"\u003eCompatible with standard Class RK5 fuse holders and fuse blocks\u003c\/li\u003e\n\u003cli data-section-id=\"9ziazr\" data-start=\"1623\" data-end=\"1699\"\u003eSuitable for switchboards, panelboards, and industrial control equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"1706\" data-end=\"1722\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"1723\" data-end=\"1914\"\u003e\n\u003cli data-section-id=\"fz1udj\" data-start=\"1723\" data-end=\"1758\"\u003eMotor branch circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"fknz5c\" data-start=\"1759\" data-end=\"1785\"\u003eTransformer protection\u003c\/li\u003e\n\u003cli data-section-id=\"gsgjc0\" data-start=\"1786\" data-end=\"1824\"\u003eIndustrial machinery and equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1b02wdy\" data-start=\"1825\" data-end=\"1871\"\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"1y9e76g\" data-start=\"1872\" data-end=\"1914\"\u003eFeeder and branch circuit applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"1921\" data-end=\"1937\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"1938\" data-end=\"2065\"\u003e\n\u003cli data-section-id=\"15ezalo\" data-start=\"1938\" data-end=\"1966\"\u003eManufacturer: Littelfuse\u003c\/li\u003e\n\u003cli data-section-id=\"1piojad\" data-start=\"1967\" data-end=\"1994\"\u003eCatalog Number: FLNR450\u003c\/li\u003e\n\u003cli data-section-id=\"6027wp\" data-start=\"1995\" data-end=\"2028\"\u003eProduct Type: Time-Delay Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"3zxftr\" data-start=\"2029\" data-end=\"2045\"\u003eSeries: FLNR\u003c\/li\u003e\n\u003cli data-section-id=\"rsvtqt\" data-start=\"2046\" data-end=\"2065\"\u003eFuse Class: RK5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Littelfuse","offers":[{"title":"NEW","offer_id":48471264821497,"sku":"FLNR450","price":128.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/1280_YMAyGLEDKfg17QIv.jpg?v=1780325831","url":"https:\/\/mycircuitbreakers.com\/products\/littelfuse-flnr450-class-rk5-fuse-450a-250v-time-delay-fuse","provider":"My Circuit Breakers","version":"1.0","type":"link"}