{"product_id":"flnr004","title":"FLNR004 - 4 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLNR004 - 4 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen your circuit has normal startup or inrush current, you don't necessarily want a fuse opening the moment that brief surge occurs. The Littelfuse FLNR004 is a 4A Class RK5 time-delay fuse built for that kind of application. Its dual-element, Slo-Blo design allows the fuse to handle temporary current increases while still providing overcurrent protection when conditions call for it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4A continuous current rating for circuits designed around a 4-amp fuse.\u003c\/li\u003e\n\u003cli\u003eClass RK5 construction for compatible industrial and commercial electrical systems.\u003c\/li\u003e\n\u003cli\u003eTime-delay performance helps accommodate temporary current surges that can occur during normal equipment operation.\u003c\/li\u003e\n\u003cli\u003eDual-element design combines time-delay characteristics with overcurrent protection.\u003c\/li\u003e\n\u003cli\u003eHandles voltages up to 250 VAC and 125 VDC.\u003c\/li\u003e\n\u003cli\u003eInterrupting rating up to 300 kA AC and 20 kA DC, depending on the application.\u003c\/li\u003e\n\u003cli\u003eIndustrial cartridge format designed for installation in compatible fuse blocks, clips, and holders.\u003c\/li\u003e\n\u003cli\u003eStraightforward non-indicating design with no visual blown-fuse indicator.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e FLNR004\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e FLNR\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Industrial cartridge fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class RK5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 4A continuous\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 250VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 125VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e Up to 300 kA AC; 20 kA DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening Type:\u003c\/strong\u003e Slo-Blo \/ Time Lag \/ Time Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Style:\u003c\/strong\u003e Dual Element\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Industrial Cartridge\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicating:\u003c\/strong\u003e No\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Method:\u003c\/strong\u003e Fuse Block \/ Clip \/ Holder\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Holder Series:\u003c\/strong\u003e LFR25030 Series\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe FLNR004 is a Class RK5 fuse, with manufacturer specifications identifying its electrical characteristics and industrial cartridge construction. Its published specifications include a 4A continuous current rating, maximum ratings of 250VAC and 125VDC, dual-element time-delay operation, and the stated AC and DC interrupting ratings.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe FLNR004 makes the most sense in industrial and commercial electrical applications where brief inrush currents are a normal part of operation. That's where its time-delay characteristic matters.\u003c\/p\u003e\n\u003cp\u003eIt's also a natural fit for maintenance and replacement work when the existing equipment specifically calls for a 4A, 250V Class RK5 time-delay cartridge fuse. Before replacing any fuse, check the required amperage, voltage, fuse class, interrupting rating, opening characteristics, and physical fit.\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eLittelfuse® is a registered trademark of Littelfuse, Inc. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Littelfuse, Inc. or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Littelfuse","offers":[{"title":"New In Box","offer_id":50459174273323,"sku":"FLNR004","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459174306091,"sku":"FLNR004  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/flnr004","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}