{"product_id":"flsr500","title":"FLSR500 - 500Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFLSR500 - 500Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNeed to replace a 500A Class RK5 fuse and want to make sure the details line up? The FLSR500 combines a 500-amp continuous rating with time-delay operation, dual-element construction, and a knife-blade design. It is rated for applications up to 600V AC and 300V DC, making voltage just as important to check as amperage when you're matching a replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e500A continuous current rating – Built for equipment and circuits specifically requiring 500-amp overcurrent protection.\u003c\/li\u003e\n\u003cli\u003eClass RK5 configuration – An important specification to verify when replacing an existing Class RK5 fuse.\u003c\/li\u003e\n\u003cli\u003eTime-delay operation – The Slo-Blo \/ Time Lag (T) characteristic accommodates appropriate temporary startup and inrush currents within the fuse's operating characteristics.\u003c\/li\u003e\n\u003cli\u003eDual-element construction – Works together with the time-delay design to provide the specified FLSR operating behavior.\u003c\/li\u003e\n\u003cli\u003eKnife-blade construction – Made to install in compatible fuse blocks, clips, and holders.\u003c\/li\u003e\n\u003cli\u003eNon-indicating version – Useful to know at a glance when you're comparing the replacement against an existing fuse specification.\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 FLSR500\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e FLSR\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type:\u003c\/strong\u003e Dual-Element Time-Delay 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\u003eContinuous Current Rating:\u003c\/strong\u003e 500A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum AC Voltage:\u003c\/strong\u003e 600V AC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DC Voltage:\u003c\/strong\u003e 300V DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening Characteristic:\u003c\/strong\u003e Slo-Blo \/ Time Lag (T) \/ 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\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\u003eDC Interrupting Rating:\u003c\/strong\u003e 20,000A (20 kA) at 300V DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Listed AC Interrupt Amperage:\u003c\/strong\u003e 200,000A and 300,000A at 600V AC*\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\u003ePG Holder:\u003c\/strong\u003e LFR60600 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 supplied product specifications identify the FLSR500 as a Class RK5 fuse. They do not, however, provide catalog-specific UL, CSA, RoHS, or other certification and material-compliance declarations. Rather than guessing at those details, they should be confirmed against documentation for the exact FLSR500 catalog number when a particular approval or compliance standard is required.\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 FLSR500 makes sense when the equipment specification calls for a 500A Class RK5 time-delay fuse with knife-blade construction. Its time-delay characteristic is particularly relevant in properly specified circuits where brief increases in current can occur during startup or normal operation. Those temporary conditions aren't the same as a sustained overcurrent, which is why matching the required opening characteristic is important.\u003cbr\u003e\u003cbr\u003eIt's also a straightforward fuse to identify during replacement work. Check for 500A, Class RK5, 600V AC maximum, 300V DC maximum, dual-element time-delay operation, knife-blade construction, and a non-indicating configuration. The supplied specifications identify mounting via a compatible fuse block, clip, or holder, as well as the LFR60600 Series holder family.\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":50459188396331,"sku":"FLSR500","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459188429099,"sku":"FLSR500  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/flsr500","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}