{"product_id":"a2d300r","title":"A2D300R - 300 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eA2D300R - 300 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mersen A2D300R Amp-Trap 2000® Class RK1 Time-Delay Fuse is designed for electrical systems that need dependable protection without sacrificing performance during equipment startup. Rated at 300 amps, this fuse helps protect motors, feeders, and branch circuits from damaging short circuits and overcurrent conditions while still allowing temporary in-rush currents that are common during motor startup.\u003c\/p\u003e\n\u003cp\u003eBuilt as part of Mersen’s trusted Amp-Trap 2000® series, the A2D300R reacts quickly during fault conditions to help reduce the risk of damage to switches, starters, and other important electrical components. At the same time, its time-delay design helps minimize nuisance fuse openings that can interrupt operations and create unnecessary downtime.\u003c\/p\u003e\n\u003cp\u003eA standout feature is the built-in SmartSpot® blown fuse indicator, which gives maintenance teams a quick visual indication when the fuse has operated. That can save valuable troubleshooting time in busy industrial and commercial environments. The fuse can also serve as a replacement for older Class H, K, and RK5 fuses already installed in existing systems, making upgrades and maintenance more straightforward.\u003c\/p\u003e\n\u003cp\u003eWhether you're installing it in a motor control center, HVAC system, manufacturing facility, or power distribution setup, the A2D300R is built for applications where reliable circuit protection matters every day.\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\u003e300 Amp Class RK1 time-delay fuse:\u003c\/strong\u003e Designed for industrial and commercial applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercurrent protection:\u003c\/strong\u003e Helps protect motors, feeders, and branch circuits from overcurrent damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-delay operation:\u003c\/strong\u003e Helps handle temporary startup and in-rush currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartSpot® indication:\u003c\/strong\u003e Provides quick visual fuse status identification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupting rating:\u003c\/strong\u003e Rated up to 200 kA for demanding electrical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC and DC compatibility:\u003c\/strong\u003e Suitable for both AC and DC applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement capability:\u003c\/strong\u003e Can replace existing Class H, K, and RK5 fuses in many systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTin-plated copper blade terminals:\u003c\/strong\u003e Support reliable conductivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable PolyTube construction:\u003c\/strong\u003e Designed for long service life.\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 A2D300R\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\u003eProduct Type:\u003c\/strong\u003e Class RK1 Time-Delay Fuse\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 300A\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\u003eFuse Class:\u003c\/strong\u003e RK1\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\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 Length:\u003c\/strong\u003e 219.2 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Diameter:\u003c\/strong\u003e 52.3 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 0.7439 kg\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 Manufactured to support modern environmental standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for UL applications:\u003c\/strong\u003e Suitable for demanding low-voltage fuse applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC and DC protection:\u003c\/strong\u003e Suitable for AC and DC circuit protection requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL\/CSA applications:\u003c\/strong\u003e Manufactured for low-voltage UL\/CSA fuse 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\u003cul\u003e\n\u003cli\u003eThe Mersen A2D300R is commonly used in industrial facilities, commercial buildings, motor control centers, HVAC equipment, manufacturing systems, and power distribution applications. It’s especially useful in systems that experience high startup currents but still require strong short-circuit protection for sensitive electrical equipment.\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":50459144159531,"sku":"A2D300R","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459144192299,"sku":"A2D300R  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/a2d300r","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}