{"product_id":"a4j350","title":"A4J350 - 350 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA4J350 - 350 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen your electrical systems are exposed to dangerous overloads or short-circuit conditions, having the right fuse in place can make all the difference. The Mersen A4J350 Amp-Trap® Class J Fast-Acting Fuse is designed to deliver fast, dependable circuit protection for demanding commercial and industrial applications. Rated for 350 amps with a 600VAC and 300VDC capacity, this Class J fuse reacts quickly to fault conditions, helping you reduce damage to expensive equipment and minimizing unplanned downtime. Its advanced current-limiting design helps stop excessive fault currents before they can spread through your system, making it a smart choice for facilities that rely on consistent electrical performance day after day.\u003c\/p\u003e\n\u003cp\u003eWhether you're protecting motor control centers, HVAC systems, industrial machinery, or power distribution equipment, this fast-acting fuse is engineered to help keep operations running safely and efficiently.\u003c\/p\u003e\n\u003cp\u003eFor contractors, maintenance teams, and facility managers looking for dependable overcurrent protection, the Mersen A4J350 offers the performance, safety, and durability needed in high-demand electrical systems. Its high 200 kA interrupting rating makes it especially effective in applications where fault current levels can be substantial, giving you confidence that your equipment has strong protection when it matters most.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast-acting Class J fuse:\u003c\/strong\u003e Designed for rapid fault response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e350 amp rating:\u003c\/strong\u003e Suitable for demanding commercial and industrial applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent-limiting protection:\u003c\/strong\u003e Helps reduce equipment damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps minimize downtime:\u003c\/strong\u003e Designed to respond during overloads and short circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRejection-style Class J design:\u003c\/strong\u003e Helps prevent incorrect fuse replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh 200 kA interrupting capacity:\u003c\/strong\u003e Provides enhanced system protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for both AC and DC applications:\u003c\/strong\u003e Supports commercial and industrial electrical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade terminal construction:\u003c\/strong\u003e Provides secure installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable insulating body:\u003c\/strong\u003e Designed for long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted protection:\u003c\/strong\u003e Suitable for sensitive electrical equipment and power systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eROHS compliant:\u003c\/strong\u003e Supports material safety standards.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Mersen\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e A4J350\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\u003c\/strong\u003e Amp-Trap® A4J\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class J\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type:\u003c\/strong\u003e Fast-Acting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 350A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600VAC \/ 300VDC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50\/60 Hz\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 200 kA AC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Type:\u003c\/strong\u003e AC\/DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Clip\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Blade\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Brass Alloy\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e GMG\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Diameter:\u003c\/strong\u003e 54 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 181.1 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 0.7938 kg\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\/EAN:\u003c\/strong\u003e 782001960438\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Compliance and Certifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eROHS Compliant:\u003c\/strong\u003e Designed to support environmental compliance requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Voltage UL\/CSA Applications:\u003c\/strong\u003e Designed for Low Voltage UL\/CSA fuse applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial and industrial electrical protection systems:\u003c\/strong\u003e Manufactured for dependable overcurrent protection.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhere It Works Best\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Mersen A4J350 fast-acting fuse is well suited for motor control centers, industrial machinery, HVAC equipment, panelboards, branch circuits, power distribution systems, and other electrical installations where fast overcurrent protection is essential. It is especially useful in environments with high available fault currents where protecting critical equipment and maintaining system uptime are top priorities.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eUse of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer.\u003cstrong\u003e CIRCUIT BREAKER SUPERSTORE®\u003c\/strong\u003e is an independent reseller and is \u003cstrong\u003enot \u003c\/strong\u003ean authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do \u003cstrong\u003enot\u003c\/strong\u003e apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 12px;\"\u003e\u003cem\u003eMersen® is a registered trademark of Mersen S.A. Products sold are surplus, used, or refurbished and are \u003cstrong\u003eNOT \u003c\/strong\u003esupplied by Mersen S.A. or its affiliates.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mersen","offers":[{"title":"New In Box","offer_id":50459154776363,"sku":"A4J350","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459154809131,"sku":"A4J350  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a4j350","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}