{"product_id":"a6d400r","title":"A6D400R - 400Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA6D400R - 400Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mersen A6D400R Amp-Trap 2000® Class RK1 time-delay fuse is designed for your electrical systems that need dependable protection without creating unnecessary downtime. Rated at 400 amps for both 600VAC and 600VDC applications, this fuse helps protect motors, feeders, branch circuits, and other power distribution equipment from overloads and short circuits while still allowing normal startup currents to pass during operation.\u003c\/p\u003e\n\u003cp\u003eIn many industrial and commercial systems, large motors draw extra current for a short time during startup. The A6D400R is built to handle those temporary inrush currents without opening too soon, helping equipment stay online and operations run more smoothly. If a serious fault occurs, the fuse reacts quickly to help reduce damage to switches, motor starters, contactors, and connected electrical components.\u003c\/p\u003e\n\u003cp\u003ePart of Mersen’s Amp-Trap 2000® A6D-R series, the A6D400R is commonly used in manufacturing facilities, HVAC systems, motor control centers, pumps, compressors, conveyor systems, and commercial distribution equipment. It can also replace older Class H, K, and RK5 fuses already installed in existing systems, making maintenance and upgrade projects more straightforward for electricians and facility teams.\u003c\/p\u003e\n\u003cp\u003eThe built-in SmartSpot® indication system gives maintenance personnel a quick visual indication when the fuse has opened, helping reduce troubleshooting time during service work. Its blade-style terminals with tin-plated copper connections provide dependable conductivity, while the PolyTube body is designed for long service life in demanding electrical environments.\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\u003e400A Class RK1 time-delay fuse:\u003c\/strong\u003e For industrial and commercial applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment protection:\u003c\/strong\u003e Helps protect motors, feeders, branch circuits, and distribution equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-delay performance:\u003c\/strong\u003e Helps reduce nuisance openings during motor startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast current-limiting protection:\u003c\/strong\u003e During severe fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartSpot® indication:\u003c\/strong\u003e Helps simplify troubleshooting and maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e600VAC \/ 600VDC rated:\u003c\/strong\u003e Rated for both 600VAC and 600VDC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupting rating:\u003c\/strong\u003e 200 kA interrupting rating for high fault-current protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement compatibility:\u003c\/strong\u003e Replacement option for older Class H, K, and RK5 fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade-style terminals:\u003c\/strong\u003e With tin-plated copper connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e PolyTube insulating body designed for demanding 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 A6D400R\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 400A\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 Blade\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 65 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 295.4 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 1.4606 kg\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\/EAN:\u003c\/strong\u003e 782001992255\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 A6D400R fuse is part of the Amp-Trap 2000® low-voltage fuse family and is designed for UL and CSA electrical applications.\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 A6D400R is commonly used in applications such as:\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\u003eConveyor and automation systems\u003c\/li\u003e\n\u003cli\u003eCommercial power distribution panels\u003c\/li\u003e\n\u003cli\u003eFeeders and branch circuits\u003c\/li\u003e\n\u003cli\u003eHeavy-duty machinery\u003c\/li\u003e\n\u003cli\u003eRetrofit projects replacing older Class H, K, or RK5 fuses\u003c\/li\u003e\n\u003cli\u003eElectrical systems with high available fault currents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor facilities looking to improve equipment protection while reducing unnecessary interruptions, the Mersen A6D400R delivers dependable performance for demanding industrial and commercial electrical systems.\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":50459157463339,"sku":"A6D400R","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459157496107,"sku":"A6D400R  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a6d400r","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}