{"product_id":"a2d40r","title":"A2D40R - 40 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA2D40R - 40 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen your electrical systems face demanding startup loads and potentially damaging fault currents, the Mersen A2D40R Amp-Trap 2000® Class RK1 Time-Delay Fuse is built to keep critical equipment protected and operations moving smoothly. Designed for industrial and commercial power distribution systems, this 40 Amp fuse combines advanced time-delay performance with fast-acting short-circuit protection, giving motors and electrical equipment the protection they need without nuisance openings during temporary inrush currents.\u003c\/p\u003e\n\u003cp\u003eWhat makes the A2D40R especially valuable in motor control and branch circuit applications is its ability to respond quickly under severe fault conditions while still allowing normal motor startups to occur uninterrupted. That balance helps you reduce unnecessary downtime and protects expensive electrical components such as motor starters, switches, and control equipment from damaging overloads. The built-in SmartSpot® visual indication system also makes maintenance easier by providing a clear visual signal when the fuse opens, helping your technicians identify issues faster and restore systems more efficiently.\u003c\/p\u003e\n\u003cp\u003eIt also serves as an excellent upgrade or replacement for older Class H, K, and RK5 fuses already installed in existing systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for industrial and commercial overcurrent protection\u003c\/li\u003e\n\u003cli\u003eAdvanced Class RK1 time-delay performance helps prevent nuisance fuse openings\u003c\/li\u003e\n\u003cli\u003eDelivers fast short-circuit protection for motors, feeders, and branch circuits\u003c\/li\u003e\n\u003cli\u003eHelps protect motor starters, switches, and electrical components from fault damage\u003c\/li\u003e\n\u003cli\u003eBuilt-in SmartSpot® blown fuse indication speeds up troubleshooting and maintenance\u003c\/li\u003e\n\u003cli\u003eHigh 200 kA interrupting rating enhances system protection under extreme fault conditions\u003c\/li\u003e\n\u003cli\u003eSuitable for both AC and DC applications\u003c\/li\u003e\n\u003cli\u003eDirect replacement option for many Class H, K, and RK5 fuses\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 A2D40R\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\u003c\/strong\u003e A2D-R \/ Amp-Trap 2000®\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Class:\u003c\/strong\u003e Class RK1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type:\u003c\/strong\u003e Time-Delay\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\u003eRated AC Voltage:\u003c\/strong\u003e 250VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated DC Voltage:\u003c\/strong\u003e 250VDC\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 Type:\u003c\/strong\u003e Clip\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndication Type:\u003c\/strong\u003e SmartSpot®\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 20.6 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 76.2 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 0.054 kg\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\u003eThe Mersen A2D40R fuse is RoHS compliant, helping support environmental and material safety standards commonly required in modern industrial and commercial facilities.\u003c\/strong\u003e Manufactured to meet demanding UL and CSA performance expectations, this fuse delivers dependable circuit protection for critical electrical infrastructure.\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 A2D40R is a smart choice for applications where motors, feeders, and branch circuits require reliable overcurrent protection without sacrificing uptime. Common applications include:\u003c\/li\u003e\n\u003cli\u003eMotor control centers\u003c\/li\u003e\n\u003cli\u003eIndustrial automation equipment\u003c\/li\u003e\n\u003cli\u003eHVAC systems and compressors\u003c\/li\u003e\n\u003cli\u003eManufacturing and processing facilities\u003c\/li\u003e\n\u003cli\u003eCommercial electrical distribution systems\u003c\/li\u003e\n\u003cli\u003eControl panels and switchgear\u003c\/li\u003e\n\u003cli\u003ePumps, conveyors, and heavy-duty machinery\u003c\/li\u003e\n\u003cli\u003eExisting systems using Class H, K, or RK5 fuses\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":50459144618283,"sku":"A2D40R","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459144651051,"sku":"A2D40R  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a2d40r","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}