{"product_id":"merit-brass-trs4-10r-time-delay-fuse-0-4a-600v-rk5","title":"Merit Brass TRS4\/10R Time-delay Fuse 0.4A 600V RK5","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT BRASS TRS4\/10R is a time-delay fuse rated at 0.4 amps and 600 volts, classified under the RK5 fuse standard. Time-delay fuses of this type are designed to withstand brief inrush currents common in motor and transformer circuits while still providing reliable overcurrent protection. The RK5 classification indicates a rejection-style fuse body that prevents installation in non-RK-rated fuse holders, adding a layer of misapplication protection. Electricians and maintenance technicians use this fuse in control panels, HVAC equipment, and light commercial electrical systems where precise, low-amperage protection is required.\u003c\/p\u003e\n\u003cp\u003eThis fuse is suited for residential and light commercial applications where low-amperage branch circuit or equipment protection is needed. Typical install scenarios include motor control circuits, transformer secondary protection, and HVAC control circuit protection where inrush tolerance is critical. The 600-volt rating provides headroom for standard single-phase and three-phase distribution systems commonly found in commercial electrical panels and packaged equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.4-amp (4\/10A) rating for precise low-amperage overcurrent protection\u003c\/li\u003e\n  \u003cli\u003e600-volt rating suitable for single-phase and three-phase systems\u003c\/li\u003e\n  \u003cli\u003eRK5 class rejection fuse body prevents installation in non-compatible holders\u003c\/li\u003e\n  \u003cli\u003eTime-delay design tolerates motor and transformer inrush currents\u003c\/li\u003e\n  \u003cli\u003eCompact form factor for control circuit and panel applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for RK5-class time-delay fuses in residential and light commercial electrical control panels and HVAC equipment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before replacing a fuse. Verify the replacement fuse matches the amperage, voltage, and class markings of the original before installation. Do not substitute a non-rejection fuse in an RK5-rated fuse holder.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage Rating\u003c\/strong\u003e: 0.4 amps (4\/10A)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 600 volts\u003c\/li\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: Time-Delay (TD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 78200174854\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: MERIT BRASS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TRS4\/10R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51383850631474,"sku":"TRS4\/10R","price":79.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312675532.jpg?v=1782609423","url":"https:\/\/voomisupply.com\/products\/merit-brass-trs4-10r-time-delay-fuse-0-4a-600v-rk5","provider":"Voomi Supply","version":"1.0","type":"link"}