{"product_id":"mersen-60300j-class-j-fuse-holder-30a-600v","title":"Mersen 60300j Class J Fuse Holder 30A 600V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERSEN 60300j is a single-pole, panel-mount fuse holder rated for Class J fuses at 30 amps and 600 volts AC. It provides secure mechanical retention and a reliable electrical connection in fused disconnect and overcurrent protection circuits. The holder is engineered for panel mounting, making it a practical choice for switchboards, load centers, and industrial control panels where Class J fusing is specified. Licensed electricians and electrical contractors install this type of hardware during new construction, service upgrades, and control-panel builds.\u003c\/p\u003e\n\u003cp\u003eThis fuse holder is suited for commercial and industrial electrical installations requiring Class J fuse protection at 30 amps and up to 600 volts AC. It fits applications where a single-pole, panel-mount configuration is needed, including motor branch circuits, feeder protection, and general-purpose overcurrent protection in enclosed panel assemblies. Its design supports secure fuse seating and stable circuit connections under continuous load conditions.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRated for Class J fuses at 30 amps and 600 volts AC\u003c\/li\u003e\n  \u003cli\u003eSingle-pole panel-mount configuration for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eDesigned for secure mechanical fuse retention and reliable electrical contact\u003c\/li\u003e\n  \u003cli\u003eSuitable for switchboards, load centers, and industrial control panels\u003c\/li\u003e\n  \u003cli\u003eMeets industry standards for electrical safety and durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-fit holder for Class J fuse applications requiring a 30-amp, 600-volt AC single-pole panel-mount configuration.\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). De-energize and lock out the circuit before installing or servicing the fuse holder. Verify that the replacement fuse inserted into the holder matches the Class J rating and does not exceed the 30-amp, 600-volt AC specifications of the holder. Do not substitute non-Class-J fuses, as doing so may compromise overcurrent protection and void compliance with applicable codes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: Class J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmpere Rating\u003c\/strong\u003e: 30 amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 600 volts AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePole Configuration\u003c\/strong\u003e: Single pole\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Type\u003c\/strong\u003e: Panel mount\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: MERSEN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 60300j\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERSEN","offers":[{"title":"Default Title","offer_id":51621150753074,"sku":"60300J","price":37.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9436a1c90fbb45519ff65ec99bdb9c2.jpg?v=1787350642","url":"https:\/\/voomisupply.com\/products\/mersen-60300j-class-j-fuse-holder-30a-600v","provider":"Voomi Supply","version":"1.0","type":"link"}