{"product_id":"merit-brass-a4j30-class-j-fuse-600v-10-pack","title":"Merit Brass A4J30 Class J Fuse 600V 10 Pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT BRASS A4J30 is a Class J current-limiting fuse rated at 600 volts, designed for overcurrent protection in industrial and commercial electrical distribution systems. Class J fuses are known for their high interrupting capacity and compact form factor, making them a reliable choice for protecting motor branch circuits, feeders, and panel boards where space and fault-current performance are critical. Licensed electricians typically install this fuse in fusible disconnects, combination starters, and distribution panelboards. The A4J30 ships in a pack of 10, supporting service inventory and multi-circuit installations.\u003c\/p\u003e\n\u003cp\u003eThis fuse is suited for commercial and industrial applications where 600-volt Class J protection is required. Typical install scenarios include motor control centers, industrial machinery branch circuits, and service entrance equipment. The compact Class J blade-style form factor fits standard Class J fuseholders found across a wide range of disconnect switches and panelboards. This 10-pack format is practical for facilities maintenance teams and electrical contractors stocking service vans or job-site supply kits.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e600-volt rating suitable for industrial and commercial distribution systems\u003c\/li\u003e\n  \u003cli\u003eClass J form factor with high interrupting capacity for fault-current protection\u003c\/li\u003e\n  \u003cli\u003eCurrent-limiting design helps reduce arc flash energy during fault events\u003c\/li\u003e\n  \u003cli\u003eCompact blade dimensions fit standard Class J fuseholders\u003c\/li\u003e\n  \u003cli\u003eSold in a 10-pack for multi-circuit or service-stock applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for standard Class J fuseholder applications in 600-volt commercial and industrial electrical distribution 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 removing or installing fuses. Verify the fuseholder is rated for Class J fuses and confirm the voltage and amperage ratings match the circuit requirements before installation. Do not install a fuse with a higher amperage rating than what the circuit is designed to carry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\u003ePackage Quantity\u003c\/strong\u003e: 10 per pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 4.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2.38 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1.69 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.26 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 78200196018\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: A4J30\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51383646060850,"sku":"A4J30","price":84.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312678346.jpg?v=1782603054","url":"https:\/\/voomisupply.com\/products\/merit-brass-a4j30-class-j-fuse-600v-10-pack","provider":"Voomi Supply","version":"1.0","type":"link"}