{"product_id":"cooper-bussmann-ecnr15-time-delay-fuse-15a-250v-class-rk5","title":"Cooper Bussmann ECNR15 Time-delay Fuse 15A 250V Class RK5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe COOPER BUSSMANN ECNR15 is a time-delay, current-limiting, dual-element fuse rated for 15 amps at 250 volts AC and 125 volts DC. It carries a Class RK5 rating and delivers 200 kAIC interrupting capacity, making it suitable for circuits that require high fault-current protection. The dual-element design provides superior overload and cycling tolerance, holding through motor inrush and temporary overloads without nuisance opening while still responding quickly to short-circuit faults. Electricians and maintenance technicians install this fuse in fusible disconnect switches, panelboards, and motor-branch-circuit protection applications.\u003c\/p\u003e\u003cp\u003eThis fuse is used in residential, commercial, and light industrial electrical systems where Class RK5 time-delay protection is required. Its ferrule-end construction fits standard Class R fuseholders rated for 250-volt service. The 8-second time-delay at 500 percent of rated current makes it well suited for motor circuits, transformer primaries, and other loads with high inrush demands. It is a non-indicating fuse, meaning no visual blown indicator is present.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTime-delay operation: holds for 8 seconds at 500 percent of rated current to ride through motor inrush\u003c\/li\u003e\n\u003cli\u003eDual-element design provides independent overload and short-circuit protection in a single fuse body\u003c\/li\u003e\n\u003cli\u003e200 kAIC interrupting rating for use on high available fault-current systems\u003c\/li\u003e\n\u003cli\u003eClass RK5 rating fits standard Class R rejection-style fuseholders\u003c\/li\u003e\n\u003cli\u003eFerrule end x ferrule end termination for secure seating in cylindrical fuseclips\u003c\/li\u003e\n\u003cli\u003eNon-indicating body — no blown indicator present\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for Class RK5 time-delay dual-element fuses in 250-volt fusible disconnect switches and branch-circuit fuseholders accepting ferrule-end 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. De-energize and lock out the circuit using appropriate LOTO procedures before removing or inserting any fuse. Verify that the fuseholder is rated for Class R rejection to maintain the Class RK5 listing. Confirm that the replacement fuse amperage, voltage rating, and interrupting rating meet or exceed the circuit requirements before energizing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 15 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating (AC)\u003c\/strong\u003e: 250 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating (DC)\u003c\/strong\u003e: 125 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating\u003c\/strong\u003e: 200 kAIC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: Class RK5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type\u003c\/strong\u003e: Time-delay, dual element, current-limiting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-Delay Characteristic\u003c\/strong\u003e: 8 seconds at 500 percent rated current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Style\u003c\/strong\u003e: Ferrule end x ferrule end\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicating\u003c\/strong\u003e: Non-indicating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 782634507307\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: ECNR15\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COOPER BUSSMANN","offers":[{"title":"Default Title","offer_id":51383827464498,"sku":"ECNR15","price":24.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312671817.png?v=1782608643","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-ecnr15-time-delay-fuse-15a-250v-class-rk5","provider":"Voomi Supply","version":"1.0","type":"link"}