{"product_id":"a4j90","title":"A4J90 - 90 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA4J90 - 90 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mersen A4J90 Amp-Trap® Class J Fuse is built for electrical systems that need dependable protection without taking up unnecessary space in the panel. Rated for 90 amps and designed with a fast-acting response, this fuse helps protect circuits and equipment from damaging short circuits and overloads before they become bigger problems. It’s a solid choice for commercial buildings, industrial equipment, HVAC systems, motor circuits, and power distribution applications where reliability matters every day.\u003c\/p\u003e\n\u003cp\u003eOne thing electricians and maintenance teams appreciate about the A4J90 is how quickly it reacts during fault conditions. That fast response can help reduce damage to connected equipment and minimize costly downtime. The compact Class J design also helps prevent the wrong fuse from being installed in the system, adding another level of protection for your electrical setup.\u003c\/p\u003e\n\u003cp\u003eMersen designed this fuse with silver-plated copper terminals for strong conductivity and long service life, while the durable insulating body stands up well in demanding environments.\u003c\/p\u003e\n\u003cp\u003eWhether you're replacing an existing fuse or maintaining critical electrical infrastructure, the A4J90 offers the performance and protection professionals expect from the Amp-Trap® series.\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 fuse:\u003c\/strong\u003e Helps quickly clear overloads and short circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90 amp rating:\u003c\/strong\u003e Designed for industrial and commercial electrical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass J current-limiting protection:\u003c\/strong\u003e Helps improve equipment safety.\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\u003eHigh 200 kA interrupting capacity:\u003c\/strong\u003e Designed for demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact blade-style design:\u003c\/strong\u003e Fits Class J fuse holders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver-plated copper terminals:\u003c\/strong\u003e Help improve conductivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRejection-style Class J dimensions:\u003c\/strong\u003e Help prevent incorrect fuse replacement.\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\u003eCatalog Number:\u003c\/strong\u003e A4J90\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e A4J – Class J – Fast-Acting\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Mersen\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 90A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating AC:\u003c\/strong\u003e 600VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating DC:\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\u003eFuse Class:\u003c\/strong\u003e Class J\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 Blade\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Silver-Plated Copper\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\u003eBody Material:\u003c\/strong\u003e GMG\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 117.6 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 27 mm\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 Suitable for low-voltage UL\/CSA fuse applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactured for commercial and industrial circuit protection systems:\u003c\/strong\u003e Designed 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 A4J90 fuse works well in a wide range of applications, including:\u003c\/li\u003e\n\u003cli\u003eIndustrial control panels\u003c\/li\u003e\n\u003cli\u003eHVAC equipment\u003c\/li\u003e\n\u003cli\u003eMotor protection circuits\u003c\/li\u003e\n\u003cli\u003eTransformers and feeder circuits\u003c\/li\u003e\n\u003cli\u003eManufacturing equipment\u003c\/li\u003e\n\u003cli\u003eCommercial power distribution systems\u003c\/li\u003e\n\u003cli\u003eHigh fault-current applications requiring fast-acting protection\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":50459155562795,"sku":"A4J90","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459155595563,"sku":"A4J90  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a4j90","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}