{"product_id":"a6d40r","title":"A6D40R - 40 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA6D40R - 40 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen electrical systems are pushed hard every day, dependable circuit protection is not optional. The Mersen A6D40R Amp-Trap 2000® Class RK1 time-delay fuse is engineered to help keep industrial and commercial equipment running safely while minimizing unnecessary downtime. Built for demanding applications, this 40A fuse combines fast short-circuit protection with the time-delay performance needed to handle temporary motor startup currents without nuisance openings. That means better protection for motors, control panels, feeders, branch circuits, and other valuable electrical components that facilities rely on every day.\u003c\/p\u003e\n\u003cp\u003ePart of Mersen’s trusted Amp-Trap 2000® A6D-R series, the A6D40R responds quickly during severe fault conditions to help limit damage to switches, contactors, motor starters, and downstream equipment. At the same time, its time-delay design allows motors and transformers to handle inrush currents during startup, helping operations stay productive instead of dealing with avoidable interruptions. Whether you are maintaining an existing electrical system or upgrading older Class H, K, or RK5 fuses, the A6D40R offers a reliable solution trusted across manufacturing plants, HVAC systems, commercial buildings, and industrial facilities.\u003c\/p\u003e\n\u003cp\u003eOne feature electricians and maintenance teams appreciate is the built-in SmartSpot® indication system. When the fuse opens, the visual indicator helps identify the blown fuse quickly, reducing troubleshooting time and making maintenance faster and more efficient. Designed with ferrule terminals, tin-plated copper connections, and a durable PolyTube body, this fuse is made for long-term performance in demanding electrical environments where reliability matters.\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\u003e40A Class RK1 time-delay fuse:\u003c\/strong\u003e Designed for commercial and industrial applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment protection:\u003c\/strong\u003e Helps protect motors, feeders, branch circuits, and sensitive electrical equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-delay characteristics:\u003c\/strong\u003e Help reduce nuisance fuse openings caused by motor inrush currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast current-limiting protection:\u003c\/strong\u003e Helps minimize damage during short-circuit events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartSpot® visual indication system:\u003c\/strong\u003e Speeds up troubleshooting and maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600VAC \/ 600VDC rated:\u003c\/strong\u003e Rated for both 600VAC and 600VDC applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupting rating:\u003c\/strong\u003e High 200 kA interrupting rating for added protection in high fault-current systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement compatibility:\u003c\/strong\u003e Ideal replacement for older Class H, K, and RK5 fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFerrule terminal construction:\u003c\/strong\u003e With tin-plated copper connections for dependable conductivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable PolyTube body:\u003c\/strong\u003e Built for demanding operating conditions.\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 A6D40R\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Amp-Trap 2000® A6D-R\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Time-Delay Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e RK1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 40A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600VAC \/ 600VDC\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\u003eCurrent Type:\u003c\/strong\u003e AC\/DC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupting Rating:\u003c\/strong\u003e 200 kA\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Characteristic:\u003c\/strong\u003e Time Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndication System:\u003c\/strong\u003e SmartSpot®\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 Ferrule\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\u003eProduct Diameter:\u003c\/strong\u003e 26.9 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 139.7 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 0.1542 kg\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\/EAN:\u003c\/strong\u003e 782001992019\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\u003eThe Mersen A6D40R fuse is part of the Amp-Trap 2000® low-voltage fuse family designed for UL and CSA applications. Its Class RK1 construction provides high current-limiting protection and supports IEC Type 2 “no damage” protection when properly applied in motor and branch circuit systems.\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\u003cp\u003eThe A6D40R is a strong fit for applications where dependable overcurrent protection and reduced downtime are priorities, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMotor control centers (MCCs)\u003c\/li\u003e\n\u003cli\u003eIndustrial manufacturing equipment\u003c\/li\u003e\n\u003cli\u003eHVAC and refrigeration systems\u003c\/li\u003e\n\u003cli\u003ePumps and compressors\u003c\/li\u003e\n\u003cli\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli\u003eFeeders and branch circuits\u003c\/li\u003e\n\u003cli\u003eConveyor systems and automated machinery\u003c\/li\u003e\n\u003cli\u003eSwitchgear and control panels\u003c\/li\u003e\n\u003cli\u003eRetrofit projects replacing older Class H, K, or RK5 fuses\u003c\/li\u003e\n\u003cli\u003eFacilities with high available fault-current levels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFrom industrial plants to commercial facilities, the Mersen A6D40R delivers the combination of safety, performance, and reliability electricians and maintenance professionals count on to keep critical systems protected and operations moving forward.\u003cbr\u003e\u003c\/p\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":50459157528875,"sku":"A6D40R","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459157561643,"sku":"A6D40R  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a6d40r","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}