{"product_id":"frs-r-300","title":"FRS-R-300 - 300Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eFRS-R-300 - 300Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMatching an FRS-R-300 fuse isn't as simple as finding another fuse marked 300 amps. The Eaton Bussmann FRS-R-300 is a 300A Class RK5 dual-element fuse rated for 600 VAC and 300 VDC, with separate interrupt ratings for AC and DC applications: 200 kAIC at 600 VAC and 20 kAIC at 300 VDC. If you're comparing this model with an existing fuse, the FRS-R-300 catalog number and 300A rating are useful starting points, but they're not the whole match. Check the Class RK5 designation, voltage and interrupt ratings, blade configuration, and dimensions against the equipment specifications before installation. That quick comparison helps separate the correct replacement from a fuse that may look similar but carries different electrical or physical characteristics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e300A Class RK5 rating: Gives you two important identification points—amperage and fuse class—when checking against equipment specifications.\u003c\/li\u003e\n\u003cli\u003e600 VAC and 300 VDC voltage ratings: Provide clearly defined manufacturer ratings for compatible AC and DC equipment.\u003c\/li\u003e\n\u003cli\u003eDual-element configuration: Matches the manufacturer's specified element design for the FRS-R-300.\u003c\/li\u003e\n\u003cli\u003eDefined response characteristic: Manufacturer data specifies a response time of 10 seconds at 500% of rated current.\u003c\/li\u003e\n\u003cli\u003eBlade-end x blade-end connection: Makes the physical connection style easy to identify when comparing replacement fuses.\u003c\/li\u003e\n\u003cli\u003eNon-indicating design: This model lacks a built-in fuse-status indicator.\u003c\/li\u003e\n\u003cli\u003eCE Marked: CE marking is identified in the supplied manufacturer specifications.\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\u003eProduct Name:\u003c\/strong\u003e Eaton Bussmann series FRS-R fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e FRS-R-300\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 051712508513\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass:\u003c\/strong\u003e Class RK5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 300 A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Voltage Rating:\u003c\/strong\u003e 600 VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Voltage Rating:\u003c\/strong\u003e 300 VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Interrupt Rating:\u003c\/strong\u003e 200 kAIC at 600 VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Interrupt Rating:\u003c\/strong\u003e 20 kAIC at 300 VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e 10 sec at 500%\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Elements:\u003c\/strong\u003e Dual\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e Blade end x blade end\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Indicator:\u003c\/strong\u003e Non-indicating\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length\/Depth:\u003c\/strong\u003e 11.63 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Height:\u003c\/strong\u003e 2.59 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Width:\u003c\/strong\u003e 2.59 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 0.4 lb\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 FRS-R-300 is CE-marked according to the supplied manufacturer information. No other material-compliance declarations or certifications were included in the provided specifications, so no additional certifications are claimed here.\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 FRS-R-300 300A fuse is suited to compatible electrical equipment that specifically requires a Class RK5 dual-element fuse with blade connections and electrical ratings corresponding to this model. Its 600 VAC and 300 VDC ratings, together with the published 200 kAIC AC and 20 kAIC DC interrupt ratings, provide clear reference points when you're checking an existing fuse or reviewing equipment documentation.\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\u003eEaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Eaton Corporation plc or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"New In Box","offer_id":50459194130731,"sku":"FRS-R-300","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459194163499,"sku":"FRS-R-300  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/frs-r-300","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}