{"product_id":"cooper-bussmann-frs-r-17-1-2-rk5-time-delay-fuse-17-5a","title":"Cooper Bussmann FRS-R-17-1\/2 RK5 Time Delay Fuse 17.5A","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COOPER BUSSMANN FRS-R-17-1\/2 is a cartridge-style, time delay fuse rated at 17.5 amps and classified as RK5. It is designed for general-purpose overcurrent protection in industrial and commercial electrical systems. The fuse features a dual-element construction that tolerates temporary motor inrush currents while still protecting against sustained overloads and short circuits. At 5 inches in overall length and 20.6 millimeters in diameter, it fits standard RK5-class fuse holders. Licensed electricians and maintenance technicians install this fuse in motor branch circuits, control panels, and distribution equipment where time delay characteristics are required.\u003c\/p\u003e\u003cp\u003eThis fuse is suited for motor load circuits, HVAC equipment, compressors, and other applications where startup current surges must be accommodated without nuisance tripping. The RK5 class designation indicates it meets the dimensional and performance requirements for that fuse category, making it appropriate for use in commercial and light industrial panel installations. It carries CE, CSA, and UL listings, supporting use in a range of North American and international project specifications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTime delay dual-element design tolerates motor inrush without nuisance opening\u003c\/li\u003e\n\u003cli\u003eRK5 class cartridge body — 5 inches long, 20.6 millimeters in diameter\u003c\/li\u003e\n\u003cli\u003eRated 17.5 amps for precise branch circuit protection\u003c\/li\u003e\n\u003cli\u003eNon-indicating construction — no visual blown indicator\u003c\/li\u003e\n\u003cli\u003eCE Certified, CSA C22.2 No. 248.12 Certified, and UL Listed 248-12 Class RK5\u003c\/li\u003e\n\u003cli\u003eMounts in standard fuse holders; no special tooling required for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for RK5-class cartridge fuse positions in standard fuse holders rated for 5-inch cartridge fuses.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and lock out the circuit before removing or installing fuses. Use an approved fuse puller rated for the cartridge size when extracting fuses from live-adjacent holders. Verify the replacement fuse amperage and class match the original equipment manufacturer specifications before reinstalling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: RK5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Timing\u003c\/strong\u003e: Time Delay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Body Type\u003c\/strong\u003e: Cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 17.5 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Elements\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 inches (127 millimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Diameter\u003c\/strong\u003e: 20.6 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Fuse Holder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicating\u003c\/strong\u003e: Non-Indicating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.17 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: CE Certified; CSA C22.2 No. 248.12 Class 1422-02 File 53787 Certified; UL Listed 248-12 Class RK5 Guide JDDZ File E4273\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 39121605\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: COOPER BUSSMANN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: FRS-R-17-1\/2\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EATON","offers":[{"title":"Default Title","offer_id":51712254509362,"sku":"FRS-R-17-1\/2","price":377.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc86cb0e12cdbc6e36adae3f72438312.jpg?v=1788485692","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-frs-r-17-1-2-rk5-time-delay-fuse-17-5a","provider":"Voomi Supply","version":"1.0","type":"link"}