{"product_id":"cooper-bussmann-frn-r-25-cartridge-fuse-25a-250v","title":"Cooper Bussmann FRN-R-25 Cartridge Fuse 25A 250V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe COOPER BUSSMANN FRN-R-25 is a 25-amp, 250-volt Class RK5 time-delay cartridge fuse designed for branch circuit and feeder protection in residential, commercial, and light industrial electrical systems. The Fusetron time-delay design tolerates normal motor inrush currents without nuisance opening, while still providing fast response to sustained overloads and short-circuit faults. This fuse is installed by licensed electricians and is commonly used to protect motors, HVAC equipment, transformers, and other inductive loads where momentary startup current spikes are expected.\u003c\/p\u003e\n\u003cp\u003eThe FRN-R-25 fits standard Class RK5 fuse holders and fusible disconnect switches rated for 250 volts AC. It is a dual-element, time-delay type appropriate for motor branch circuits, control panels, and equipment protection applications in both residential and commercial settings. The Fusetron series is a widely specified fuse type in HVAC, refrigeration, and general electrical distribution work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e25-amp continuous current rating with time-delay element for motor inrush tolerance\u003c\/li\u003e\n  \u003cli\u003e250-volt AC maximum voltage rating\u003c\/li\u003e\n  \u003cli\u003eClass RK5 current-limiting design for enhanced equipment protection\u003c\/li\u003e\n  \u003cli\u003eDual-element construction distinguishes between temporary inrush and true fault conditions\u003c\/li\u003e\n  \u003cli\u003eSold in a box of 10 units for stocking and service vehicle use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for Class RK5 cartridge fuse applications in standard 250-volt fusible disconnect switches and fuse holders accepting FRN-R series fuses.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a qualified electrician in accordance with NFPA 70 (NEC) Article 240 governing overcurrent protection. Always de-energize and lock out the circuit before removing or installing fuses. Use an insulated fuse puller appropriate for cartridge fuses to avoid contact with energized parts. Verify the fuse holder is rated for the voltage and current of the circuit before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e: 25 amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 250 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Type\u003c\/strong\u003e: Time Delay (Dual Element)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass\u003c\/strong\u003e: RK5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Fusetron FRN-R\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10 per box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: FRN-R-25\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BUSSMANN","offers":[{"title":"Default Title","offer_id":51563059380530,"sku":"FRN-R-25","price":91.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ff49c0e6801eea5aa67c8b8279f6a052_8f6bfc1f-e799-4c9d-904c-ad33fc596615.jpg?v=1786489415","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-frn-r-25-cartridge-fuse-25a-250v","provider":"Voomi Supply","version":"1.0","type":"link"}