{"product_id":"cooper-bussmann-ecnr35-35a-250v-class-rk5-time-delay-fuse","title":"Cooper Bussmann ECNR35 35A 250V Class RK5 Time-delay Fuse","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe COOPER BUSSMANN ECNR35 is a 35-amp, 250-volt time-delay, current-limiting fuse designed for demanding electrical protection applications. Built to Class RK5 standards, it features a dual-element construction that separates overload and short-circuit protection into two distinct operating elements. This design allows the fuse to carry temporary inrush currents without nuisance opening, while still providing fast response to sustained overloads and fault conditions. The ECNR35 carries a 200 kAIC interrupting rating, making it suitable for systems with high available fault current. Licensed electricians install this fuse in fusible disconnect switches, motor branch circuits, and distribution panelboards.\u003c\/p\u003e\n\u003cp\u003eThe ECNR35 is well suited for motor load circuits, transformer primaries, and other applications where inrush or cycling currents would cause a standard single-element fuse to open prematurely. Its 10-second time-delay at 500 percent of rated current accommodates motor starting surges without sacrificing overload protection. The ferrule-end termination style fits standard Class RK5 fuse holders and fusible switches rated for 35-amp, 250-volt service. It also carries a 125-volt DC rating, extending its use to DC control and power circuits within that voltage range.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-element construction provides separate overload and short-circuit protection elements\u003c\/li\u003e\n  \u003cli\u003e10-second time-delay at 500 percent of rated current handles motor inrush without nuisance opening\u003c\/li\u003e\n  \u003cli\u003e200 kAIC interrupting rating suitable for high fault-current systems\u003c\/li\u003e\n  \u003cli\u003eClass RK5 current-limiting design reduces let-through energy during fault events\u003c\/li\u003e\n  \u003cli\u003eRated 125 volts DC for compatible DC circuit applications\u003c\/li\u003e\n  \u003cli\u003eFerrule-end termination fits standard Class RK5 fuse holders and disconnect switches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for Class RK5 dual-element time-delay fuses in 35-amp, 250-volt fusible disconnect switches and motor circuit protection applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit at the upstream overcurrent device before removing or installing the fuse. Verify that the fuse holder or disconnect switch is rated for Class RK5 fuses at the required amperage and voltage before installation. Do not install a fuse with a higher ampere rating than the circuit or equipment is designed to carry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmpere Rating\u003c\/strong\u003e: 35 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 DC\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterrupting Rating\u003c\/strong\u003e: 200 kAIC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTime-Delay Rating\u003c\/strong\u003e: 10 seconds at 500 percent of rated current\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTermination 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: 782634507352\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: ECNR35\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COOPER BUSSMANN","offers":[{"title":"Default Title","offer_id":51383455842610,"sku":"ECNR35","price":35.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312671828.png?v=1782597208","url":"https:\/\/voomisupply.com\/products\/cooper-bussmann-ecnr35-35a-250v-class-rk5-time-delay-fuse","provider":"Voomi Supply","version":"1.0","type":"link"}