{"product_id":"a4by1000","title":"A4BY1000 - 1000Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA4BY1000 - 1000Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen your electrical system demands serious overcurrent protection, the Mersen A4BY1000 Amp-Trap® Class L Time-Delay Fuse delivers the performance and reliability industrial facilities count on every day. Built for protecting service entrance equipment, feeder circuits, and circuit breakers, this 1000A Class L fuse is designed to handle demanding power distribution environments while helping reduce costly downtime. Its time-delay functionality allows normal startup and inrush currents to pass without unnecessary fuse operation, making it a smart choice for systems with motors, transformers, and other high-inrush equipment.\u003c\/p\u003e\n\u003cp\u003eWhether you are upgrading switchgear, servicing feeder protection, or maintaining critical infrastructure equipment, the Mersen A4BY1000 offers the confidence and protection modern electrical systems require.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1000 Amp Class L fuse designed for high-capacity electrical distribution systems\u003c\/li\u003e\n\u003cli\u003eTime-delay design helps prevent nuisance openings during motor startup and temporary surge conditions\u003c\/li\u003e\n\u003cli\u003e600VAC and 300VDC ratings support a wide range of industrial and commercial applications\u003c\/li\u003e\n\u003cli\u003eHigh 200 kA interrupting rating delivers excellent short-circuit protection\u003c\/li\u003e\n\u003cli\u003e100% rated fuse allows continuous operation at full ampere capacity\u003c\/li\u003e\n\u003cli\u003eSilver-plated copper blade terminals improve conductivity and resist corrosion over time\u003c\/li\u003e\n\u003cli\u003eBolted mounting configuration provides secure and dependable installation\u003c\/li\u003e\n\u003cli\u003eCoordinates effectively with ground fault relays and downstream protective devices\u003c\/li\u003e\n\u003cli\u003eHelps protect service entrance equipment, feeder circuits, and circuit breakers from damaging overcurrent events\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 A4BY1000\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Class L Time-Delay Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e A4BY Amp-Trap®\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 1000A\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 L\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed \/ Characteristic:\u003c\/strong\u003e Time Delay\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\u003eMounting Type:\u003c\/strong\u003e Bolted\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\u003eBody Material:\u003c\/strong\u003e GMG\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 273 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Diameter:\u003c\/strong\u003e 63.5 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 1.9414 kg\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 782001939144\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\u003eManufactured by Mersen, a trusted global leader in electrical power protection solutions\u003c\/li\u003e\n\u003cli\u003eDesigned for use in UL\/CSA low-voltage fuse applications\u003c\/li\u003e\n\u003cli\u003eSuitable for systems requiring high interrupting capacity and coordinated overcurrent protection\u003c\/li\u003e\n\u003cli\u003eEngineered to meet the performance expectations of demanding commercial and industrial environments\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\u003eIndustrial manufacturing facilities\u003c\/li\u003e\n\u003cli\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli\u003eService entrance protection\u003c\/li\u003e\n\u003cli\u003eLarge feeder circuits\u003c\/li\u003e\n\u003cli\u003eMotor control centers\u003c\/li\u003e\n\u003cli\u003eSwitchgear and panelboard systems\u003c\/li\u003e\n\u003cli\u003eUtility and infrastructure projects\u003c\/li\u003e\n\u003cli\u003eHeavy processing equipment and industrial machinery\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":50459151991083,"sku":"A4BY1000","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459152023851,"sku":"A4BY1000  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a4by1000","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}