{"product_id":"merit-brass-ajt225-class-j-time-delay-fuse-225a-600v","title":"Merit Brass AJT225 Class J Time-delay Fuse 225A 600V","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT BRASS AJT225 is a Class J time-delay fuse rated for 225 amps at 600 volts, designed for use in commercial and industrial electrical distribution systems. Class J fuses provide current-limiting protection, interrupting fault currents rapidly to protect downstream equipment from damage. The time-delay characteristic allows the fuse to tolerate brief motor-starting inrush currents without nuisance opening, while still responding decisively to sustained overloads and short-circuit events. Licensed electricians install this fuse in fusible disconnect switches and panelboards where Class J form factor and current-limiting performance are specified.\u003c\/p\u003e\n\u003cp\u003eThis fuse is suited for branch-circuit and feeder protection in commercial buildings, light industrial facilities, and mechanical equipment rooms. Common applications include motor branch circuits, HVAC equipment disconnects, and service entrance protection where a 225-amp Class J fuse is required by design or code. The compact Class J form factor prevents substitution of lower-rated fuse classes, a key safety feature in properly coordinated systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e225-amp continuous current rating at 600 volts AC\u003c\/li\u003e\n  \u003cli\u003eClass J current-limiting design for fast fault interruption\u003c\/li\u003e\n  \u003cli\u003eTime-delay action tolerates motor-start inrush without nuisance opening\u003c\/li\u003e\n  \u003cli\u003eClass J form factor prevents cross-class substitution\u003c\/li\u003e\n  \u003cli\u003ePackaged individually — 1 fuse per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement Class J fuse for use in any fusible disconnect switch or panelboard that accepts a standard 225-amp Class J fuse holder.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the circuit at the upstream disconnect or breaker before removing or installing this fuse. Verify that the fuse holder and disconnect are rated for Class J fuses at 600 volts and 225 amps or higher before installation. Do not install a fuse into an energized fuseholder.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 225 amps\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: Class J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Time-Delay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (L x W x H)\u003c\/strong\u003e: 7.250 inches x 2.120 inches x 2.120 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.000 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 78200196228\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: AJT225\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT BRASS","offers":[{"title":"Default Title","offer_id":51383876682034,"sku":"AJT225","price":1034.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312678349.jpg?v=1782610314","url":"https:\/\/voomisupply.com\/products\/merit-brass-ajt225-class-j-time-delay-fuse-225a-600v","provider":"Voomi Supply","version":"1.0","type":"link"}