{"product_id":"merit-brass-a4j50-class-j-fuse-600v-10-pack","title":"Merit Brass A4J50 Class J Fuse 600V 10 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MERIT BRASS A4J50 is a Class J fuse rated for 600 volts, designed to provide high-performance overcurrent protection in commercial and industrial electrical systems. Class J fuses are recognized for their current-limiting characteristics, interrupting fault currents quickly to protect downstream equipment such as motors, transformers, and control panels. The A4J50 is supplied in a 10-unit pack and weighs 0.170 pounds. Licensed electricians and electrical contractors install this fuse type in branch-circuit and feeder applications where tight overcurrent coordination and space-efficient fuse holders are required.\u003c\/p\u003e\u003cp\u003eClass J fuses are used in a wide range of commercial and industrial applications, including motor control centers, combination starters, panelboards, and disconnect switches. The 600-volt rating makes the A4J50 suitable for use in both single-phase and three-phase distribution systems commonly found in light commercial and industrial facilities. This fuse is installed in Class J-rated fuse holders and fusible disconnects, and the 10-pack format supports stocking needs for service contractors and maintenance crews.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e600-volt rating suitable for commercial and industrial branch-circuit protection\u003c\/li\u003e\n\u003cli\u003eClass J form factor provides current-limiting overcurrent protection\u003c\/li\u003e\n\u003cli\u003eSupplied in a 10-unit pack for efficient stocking and service calls\u003c\/li\u003e\n\u003cli\u003eCompact dimensions support installation in space-constrained fuse holders and disconnects\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.170 pounds per unit for easy handling and transport\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for Class J fuse applications requiring a 600-volt rated current-limiting fuse in standard Class J fuse holders and fusible disconnect switches.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before removing or installing fuses. Verify the fuse holder is rated for Class J fuses before installation. Never substitute a fuse with a higher amperage rating than the circuit is designed for.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\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: Class J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 2.440 inches x 2.190 inches x 5.500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.170 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 78200196024\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: A4J50\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51383034478898,"sku":"A4J50","price":141.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312678375.jpg?v=1782586211","url":"https:\/\/voomisupply.com\/products\/merit-brass-a4j50-class-j-fuse-600v-10-pack","provider":"Voomi Supply","version":"1.0","type":"link"}