{"product_id":"merit-brass-a2d2-1-2r-250v-rk1-time-delay-fuse","title":"Merit Brass A2D2-1\/2R 250V RK1 Time Delay Fuse","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT BRASS A2D2-1\/2R is a time-delay fuse rated at 250 volts in the RK1 fuse class. Time-delay fuses are engineered to tolerate brief inrush currents during motor startup without opening, while still providing fast protection against sustained overloads and short circuits. This class of fuse is a standard component in motor-branch circuits, HVAC equipment, and other inductive-load applications where nuisance tripping must be minimized. Licensed electricians and HVAC service technicians install RK1 fuses as part of equipment disconnect and overcurrent protection assemblies.\u003c\/p\u003e\n\u003cp\u003eRK1 class fuses are used in residential and light commercial electrical systems, particularly in motor circuits, air conditioning equipment, and industrial control panels. The A2D2-1\/2R is sized for applications where a rejection-style fuse holder is required, preventing the installation of lower-rated fuse classes in that holder position. This makes it a common replacement component in service work on existing fuse-protected equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTime-delay design tolerates motor inrush current without nuisance opening\u003c\/li\u003e\n  \u003cli\u003eRK1 rejection class provides a higher degree of current limitation than standard fuses\u003c\/li\u003e\n  \u003cli\u003e250 volt rating suitable for single-phase and multi-phase branch circuits within that voltage range\u003c\/li\u003e\n  \u003cli\u003eCompact form factor fits standard RK1 fuse holders and disconnect blocks\u003c\/li\u003e\n  \u003cli\u003eSold in packs of 10, reducing per-unit cost for service stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for RK1 class fuse positions in motor-branch circuits and HVAC disconnect assemblies rated at 250 volts or below.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before removing or installing fuses. Confirm the fuse holder is rated for RK1 class before installation. Never replace a fuse with one of a higher current rating than the circuit is designed for.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 250 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: RK1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Type\u003c\/strong\u003e: Time Delay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10 per pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3.000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2.060 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.190 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.42 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: MERIT BRASS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: A2D2-1\/2R\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51383077798194,"sku":"A2D2-1\/2R","price":54.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312678645.jpg?v=1782587406","url":"https:\/\/voomisupply.com\/products\/merit-brass-a2d2-1-2r-250v-rk1-time-delay-fuse","provider":"Voomi Supply","version":"1.0","type":"link"}