{"product_id":"ajt300","title":"AJT300 - 300 Amp Fuse","description":"\u003cp\u003e\u003cstrong\u003eAJT300 - 300 Amp Fuse\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AJT300 Class J Time-Delay Fuse is made for your electrical systems where motors, transformers, and heavy equipment create temporary startup surges during normal operation. Those short bursts of extra current are common in industrial and commercial settings, and this fuse is designed to handle them without opening too quickly. At the same time, it still provides dependable protection when overloads or short circuits happen.\u003c\/p\u003e\n\u003cp\u003eIts compact Class J design helps you save space inside electrical panels and switchboards, which can be helpful in tighter installations. The fuse also offers current-limiting protection, helping you reduce the amount of fault current moving through the system during a short circuit. That can help limit damage to connected equipment, wiring, and controls.\u003c\/p\u003e\n\u003cp\u003eThe SmartSpot® visual indicator adds a simple but useful feature for maintenance teams. When the fuse opens, the indicator provides a quick visual signal so the problem fuse can be identified faster, helping reduce troubleshooting time and downtime.\u003c\/p\u003e\n\u003cp\u003eThe AJT300 is commonly used in commercial and industrial power distribution systems where reliable overcurrent protection is needed every day. Its combination of time-delay performance, compact sizing, and high interrupting capacity makes it a practical fit for demanding electrical applications.\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\u003eTime-delay design helps reduce nuisance openings during startup currents:\u003c\/strong\u003e Allows temporary startup surges to pass without unnecessary interruptions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent-limiting protection helps reduce damage during fault conditions:\u003c\/strong\u003e Helps minimize thermal and mechanical stress on connected electrical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Class J size helps save panel space:\u003c\/strong\u003e Fits well into installations where enclosure space is limited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartSpot® visual indicator helps identify opened fuses quickly:\u003c\/strong\u003e Helps maintenance teams quickly locate opened fuses during troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh interrupting capacity for demanding electrical systems:\u003c\/strong\u003e Suitable for commercial and industrial high fault-current environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for AC and DC applications:\u003c\/strong\u003e Compatible with a variety of electrical distribution systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade-style terminals support secure installation:\u003c\/strong\u003e Helps provide dependable fit and electrical connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommonly used in commercial and industrial applications:\u003c\/strong\u003e Designed for dependable operation in 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\u003eCatalog Number:\u003c\/strong\u003e AJT300\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e AJT – Class J – Time-Delay\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Type:\u003c\/strong\u003e Amp-Trap 2000®\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmpere Rating:\u003c\/strong\u003e 300 Amps\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating (AC):\u003c\/strong\u003e 600 VAC\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating (DC):\u003c\/strong\u003e 500 VDC\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 Class J\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharacteristic:\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\u003eMounting Type:\u003c\/strong\u003e Clip or Bolted\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 Brass\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndication System:\u003c\/strong\u003e SmartSpot® Visual Indicator\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e GMG\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Diameter:\u003c\/strong\u003e 54 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Length:\u003c\/strong\u003e 181.1 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Weight:\u003c\/strong\u003e 0.8119 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\u003eIndustry Standards:\u003c\/strong\u003e The AJT300 fuse is designed for low-voltage UL and CSA applications and supports IEC Type 2 “No Damage” protection requirements when properly coordinated within electrical 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\u003cul\u003e\n\u003cli\u003eThe AJT300 is commonly installed in motor control centers, HVAC systems, industrial machinery, transformers, switchboards, feeder circuits, branch circuits, and commercial power distribution systems where temporary startup surges are expected during normal operation.\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":50459166245163,"sku":"AJT300","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50459166277931,"sku":"AJT300  [R]","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/store.circuitbreakersuperstore.com\/products\/ajt300","provider":"CIRCUIT BREAKER SUPERSTORE®","version":"1.0","type":"link"}