{"product_id":"a2d450r","title":"A2D450R - 450 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA2D450R - 450 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mersen A2D450R Amp-Trap 2000® fuse is built for electrical systems that can’t afford unreliable protection. Rated at 450 amps, this Class RK1 time-delay fuse is designed to handle the momentary startup surges common in motors and heavy equipment while still reacting quickly when a serious fault occurs. That balance helps you protect valuable electrical components without causing unnecessary downtime from nuisance fuse openings.\u003c\/p\u003e\n\u003cp\u003eIn real-world applications, the A2D450R is often used in motor control centers, distribution panels, HVAC equipment, and industrial power systems where dependable overcurrent protection is a must. Its current-limiting design helps you reduce the amount of fault energy reaching downstream equipment, which can help minimize damage to switches, starters, and connected components during short-circuit events.\u003c\/p\u003e\n\u003cp\u003eMersen also includes its SmartSpot® indicator, making it easier to identify when the fuse has opened. For electricians and maintenance teams, that can save valuable troubleshooting time during repairs or routine service. The blade-style terminals are made from tin-plated copper for reliable conductivity, while the durable PolyTube body is designed to hold up in demanding industrial 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\u003e450 Amp Class RK1 time-delay fuse:\u003c\/strong\u003e Designed for industrial and commercial electrical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual voltage capability:\u003c\/strong\u003e Rated for 250VAC and 250VDC applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor startup protection:\u003c\/strong\u003e Handles temporary motor startup currents without unnecessary fuse openings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupting rating:\u003c\/strong\u003e 200 kA interrupting rating for high-level short-circuit protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartSpot® indication:\u003c\/strong\u003e Built-in indicator helps quickly identify opened fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent-limiting protection:\u003c\/strong\u003e Helps reduce damage to electrical equipment during fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement compatibility:\u003c\/strong\u003e Compatible replacement for many older Class H, K, and RK5 fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTin-plated copper blade terminals:\u003c\/strong\u003e Provide dependable electrical connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable PolyTube construction:\u003c\/strong\u003e Designed for long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile application support:\u003c\/strong\u003e Suitable for feeders, branch circuits, motor protection, and control panels.\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 A2D450R\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 450A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage AC:\u003c\/strong\u003e 250VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage DC:\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\u003eConnection 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\u003eMounting Type:\u003c\/strong\u003e Clip\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\u003eBody Material:\u003c\/strong\u003e PolyTube\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 10.38 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Diameter:\u003c\/strong\u003e 3.12 in\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 2.933 lb\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 Supports environmental and material compliance requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL\/CSA applications:\u003c\/strong\u003e Designed for low-voltage fuse applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC and DC compatibility:\u003c\/strong\u003e Suitable for AC and DC circuit protection systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial standards:\u003c\/strong\u003e Manufactured to meet industrial overcurrent protection standards.\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 Mersen A2D450R is commonly used in manufacturing facilities, commercial buildings, HVAC systems, motor control centers, and industrial distribution equipment where reliable fuse protection is critical. Its time-delay design works especially well in systems with motors or equipment that create temporary inrush currents during startup.\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":50459144683819,"sku":"A2D450R","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459144716587,"sku":"A2D450R  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a2d450r","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}