{"product_id":"flnr500","title":"FLNR500 - 500 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLNR500 - 500 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen your application calls for a 500-amp Class RK5 time-delay fuse, the FLNR500 is built for the job. This dual-element fuse is rated for 250VAC and 125VDC and uses a knife-blade design for installation in compatible fuse blocks, clips, and holders. What makes the FLNR500 especially useful is its time-delay operation. Motors, transformers, and other electrical equipment can pull considerably more current for a short period during startup. The FLNR500 is designed to handle appropriate temporary inrush currents without opening unnecessarily, while still providing protection when an overload or short-circuit condition occurs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e500-amp rating: Designed for circuits requiring a 500A Class RK5 fuse.\u003c\/li\u003e\n\u003cli\u003eTime-delay performance: Helps accommodate normal temporary startup and inrush currents.\u003c\/li\u003e\n\u003cli\u003eDual-element design: Combines time-delay operation with overcurrent protection for properly specified circuits.\u003c\/li\u003e\n\u003cli\u003e250 VAC \/ 125 VDC ratings: Suitable for compatible AC and DC electrical applications.\u003c\/li\u003e\n\u003cli\u003eKnife-blade construction: Fits compatible fuse blocks, clips, and holders.\u003c\/li\u003e\n\u003cli\u003eClass RK5 configuration: Designed for applications requiring this specific fuse class.\u003c\/li\u003e\n\u003cli\u003eLFR25600 Series compatibility: Identified for use with this series of holders.\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 FLNR500\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\u003eFuse Class:\u003c\/strong\u003e Class RK5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 500A\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\u003eOpening Type:\u003c\/strong\u003e Slo-Blo \/ Time Lag \/ Time Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily Style:\u003c\/strong\u003e Dual Element Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Interrupting Rating:\u003c\/strong\u003e Up to 300 kA\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupting Rating:\u003c\/strong\u003e 20 kA\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction \/ Size:\u003c\/strong\u003e Knife-Blade\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\u003eHolder Series:\u003c\/strong\u003e LFR25600 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 FLNR500 is part of the FLNR Class RK5 fuse series. For applications where specific regulatory approvals, certifications, or material-compliance requirements must be documented, the current documentation for the exact FLNR500 catalog number should be checked before installation.\u003cbr\u003e\u003cbr\u003eIt’s also important not to choose a replacement fuse based on amperage alone. The fuse class, voltage rating, interrupting capacity, time-delay characteristics, physical configuration, and application requirements all matter when determining whether the FLNR500 is the correct fit for a particular circuit.\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 FLNR500 makes the most sense in electrical systems where temporary inrush current is normal but sustained overcurrent still needs dependable protection. Think motor loads, transformers, industrial machinery, manufacturing equipment, and commercial or industrial power-distribution applications where the electrical system is designed for a 500A Class RK5 time-delay fuse.\u003cbr\u003e\u003cbr\u003eThat time-delay characteristic is particularly important. A motor starting up, for example, can briefly draw substantially more current than it does once it is running. A properly selected time-delay fuse can ride through an acceptable short-duration surge instead of opening unnecessarily.\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":50459182006571,"sku":"FLNR500","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459182039339,"sku":"FLNR500  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/flnr500","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}