{"product_id":"a4j20","title":"A4J20 - 20 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA4J20 - 20 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mersen A4J20 Amp-Trap® Class J Fast-Acting Fuse is designed for electrical systems that need quick, reliable protection when faults happen. Rated at 20 Amps, this fuse helps protect your equipment and circuits from overloads and short circuits before they turn into larger electrical problems. Its fast-acting design makes it a solid choice for applications with sensitive equipment where fast interruption is important.\u003c\/p\u003e\n\u003cp\u003eUsed in many commercial and industrial systems, the A4J20 provides strong current-limiting protection in a compact Class J design. The smaller footprint helps save space inside panels and switchgear, while the Class J construction also helps prevent lower-rated fuses from being installed accidentally. That extra level of protection can help you improve overall system safety and reliability.\u003c\/p\u003e\n\u003cp\u003eThe fuse features tin-plated copper ferrule terminals for dependable conductivity and secure clip mounting. Its durable PolyTube body is built to handle demanding electrical environments found in manufacturing facilities, HVAC systems, control panels, and power distribution equipment. With a high 200 kA interrupting rating, the A4J20 is capable of handling severe fault conditions while helping reduce damage to connected components.\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\u003e20 Amp Class J fast-acting fuse:\u003c\/strong\u003e Designed for rapid overcurrent protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuickly responds to overloads and short circuits:\u003c\/strong\u003e Helps protect connected equipment and circuits.\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\u003eRated for 600VAC and 300VDC applications:\u003c\/strong\u003e Suitable for AC and DC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Class J design:\u003c\/strong\u003e Helps prevent incorrect fuse replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh 200 kA interrupting rating:\u003c\/strong\u003e Designed for severe fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFerrule terminals:\u003c\/strong\u003e Support secure clip mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for AC and DC systems:\u003c\/strong\u003e Designed for multiple electrical applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for commercial and industrial electrical applications:\u003c\/strong\u003e Supports dependable overcurrent protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps improve equipment protection and system reliability:\u003c\/strong\u003e Suitable for demanding electrical environments.\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 A4J20\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\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 20A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Voltage Rating:\u003c\/strong\u003e 600VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Voltage Rating:\u003c\/strong\u003e 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\u003eTerminal Type:\u003c\/strong\u003e Ferrule\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Clip\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Tin-Plated Copper\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e PolyTube\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 20.7 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 57.2 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 0.044 kg\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Group:\u003c\/strong\u003e Low Voltage UL\/CSA Fuses\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e RoHS Compliant\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 The Mersen A4J20 fuse is RoHS compliant, supporting environmental standards for electrical components used in modern industrial and commercial systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL and CSA Applications:\u003c\/strong\u003e It is designed for low-voltage UL and CSA fuse applications that require 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 A4J20 is commonly used in applications that require fast fault clearing and reliable circuit protection, including industrial control panels, HVAC systems, commercial electrical equipment, manufacturing machinery, branch circuit protection, power distribution systems, motor and control circuits, OEM equipment, and switchgear and panelboards. Its fast-acting performance makes it especially useful in systems where protecting sensitive electrical equipment from overloads and fault currents is a priority.\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":50459153989931,"sku":"A4J20","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459154022699,"sku":"A4J20  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a4j20","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}