{"product_id":"mersen-ajt250-fuse-class-j-250a-600vac-500vdc-time-delay-blade-fuse-amp-trap-2000®-ajt","title":"Mersen AJT250 Fuse – Class J – 250A – 600VAC\/500VDC – Time-Delay Blade Fuse (Amp-Trap 2000® AJT)","description":"\u003cp data-start=\"153\" data-end=\"718\"\u003eThe \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eMersen\u003c\/span\u003e\u003c\/span\u003e AJT250 is a Class J time-delay fuse engineered for high-reliability protection in industrial power distribution systems. Rated at 250 Amps, this Amp-Trap 2000® fuse provides controlled time-delay characteristics, allowing it to withstand temporary inrush currents while delivering fast and safe interruption under short-circuit conditions. With voltage ratings of 600VAC and 500VDC, it is designed for both AC and DC systems requiring high interrupting capacity, compact size, and selective coordination.\u003c\/p\u003e\n\u003ch3 data-section-id=\"yc43s8\" data-start=\"720\" data-end=\"742\"\u003eVoltage and Rating\u003c\/h3\u003e\n\u003cul data-start=\"744\" data-end=\"897\"\u003e\n\u003cli data-section-id=\"c4tn2b\" data-start=\"744\" data-end=\"772\"\u003eCurrent Rating: 250 Amps\u003c\/li\u003e\n\u003cli data-section-id=\"1jrwfrt\" data-start=\"773\" data-end=\"808\"\u003eVoltage Rating: 600VAC \/ 500VDC\u003c\/li\u003e\n\u003cli data-section-id=\"12sfb1r\" data-start=\"809\" data-end=\"832\"\u003eFrequency: 50\/60 Hz\u003c\/li\u003e\n\u003cli data-section-id=\"lh2ska\" data-start=\"833\" data-end=\"856\"\u003eFuse Class: Class J\u003c\/li\u003e\n\u003cli data-section-id=\"4myp57\" data-start=\"857\" data-end=\"897\"\u003eFuse Type: Time-Delay (Dual-Element)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"899\" data-end=\"921\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"923\" data-end=\"1210\"\u003e\n\u003cli data-section-id=\"1g99695\" data-start=\"923\" data-end=\"967\"\u003eProduct Type: Industrial Time-Delay Fuse\u003c\/li\u003e\n\u003cli data-section-id=\"107qxqz\" data-start=\"968\" data-end=\"998\"\u003eSeries: Amp-Trap 2000® AJT\u003c\/li\u003e\n\u003cli data-section-id=\"140wlvt\" data-start=\"999\" data-end=\"1022\"\u003ePart Number: AJT250\u003c\/li\u003e\n\u003cli data-section-id=\"65a2sf\" data-start=\"1023\" data-end=\"1078\"\u003eManufacturer: \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eMersen\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jpwrkx\" data-start=\"1079\" data-end=\"1104\"\u003eMounting Style: Blade\u003c\/li\u003e\n\u003cli data-section-id=\"1s9qp1f\" data-start=\"1105\" data-end=\"1163\"\u003eResponse Type: Time-delay for inrush current tolerance\u003c\/li\u003e\n\u003cli data-section-id=\"1qlxhwq\" data-start=\"1164\" data-end=\"1210\"\u003eIndicator: SmartSpot® blown-fuse indicator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"nucr17\" data-start=\"1212\" data-end=\"1240\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-start=\"1242\" data-end=\"1715\"\u003e\n\u003cli data-section-id=\"1ey55ch\" data-start=\"1242\" data-end=\"1327\"\u003eProtection Type: Overcurrent and short-circuit protection for industrial circuits\u003c\/li\u003e\n\u003cli data-section-id=\"upex6v\" data-start=\"1328\" data-end=\"1426\"\u003eApplication Suitability: Motor circuits, transformers, feeders, and power distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"auvt6b\" data-start=\"1427\" data-end=\"1520\"\u003eCoordination Type: Designed for selective coordination with downstream protection devices\u003c\/li\u003e\n\u003cli data-section-id=\"onczy5\" data-start=\"1521\" data-end=\"1633\"\u003eConstruction Features: High interrupting capacity, current-limiting design, and controlled delay performance\u003c\/li\u003e\n\u003cli data-section-id=\"1ad6lq8\" data-start=\"1634\" data-end=\"1715\"\u003eSystem Integration: Suitable for AC and DC systems up to rated voltage limits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"nr5bwx\" data-start=\"1717\" data-end=\"1744\"\u003eStandards and Approvals\u003c\/h3\u003e\n\u003cul data-start=\"1746\" data-end=\"1883\"\u003e\n\u003cli data-section-id=\"11a7gqd\" data-start=\"1746\" data-end=\"1759\"\u003eUL Listed\u003c\/li\u003e\n\u003cli data-section-id=\"1ygh62h\" data-start=\"1760\" data-end=\"1777\"\u003eCSA Certified\u003c\/li\u003e\n\u003cli data-section-id=\"luxhx6\" data-start=\"1778\" data-end=\"1813\"\u003eClass J fuse standard compliant\u003c\/li\u003e\n\u003cli data-section-id=\"1pnqzgh\" data-start=\"1814\" data-end=\"1883\"\u003eIEC equivalent industrial protection standards (where applicable)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1aljov1\" data-start=\"1885\" data-end=\"1901\"\u003eProduct Data\u003c\/h3\u003e\n\u003cul data-start=\"1903\" data-end=\"2039\"\u003e\n\u003cli data-section-id=\"8qge4f\" data-start=\"1903\" data-end=\"1958\"\u003eManufacturer: \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eMersen\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"107qxqz\" data-start=\"1959\" data-end=\"1989\"\u003eSeries: Amp-Trap 2000® AJT\u003c\/li\u003e\n\u003cli data-section-id=\"140wlvt\" data-start=\"1990\" data-end=\"2013\"\u003ePart Number: AJT250\u003c\/li\u003e\n\u003cli data-section-id=\"1hqhyl2\" data-start=\"2014\" data-end=\"2039\"\u003eEAN\/UPC: 782001962265\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"wggvqn\" data-start=\"2041\" data-end=\"2057\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"2059\" data-end=\"2372\"\u003e\n\u003cli data-section-id=\"18xv2zo\" data-start=\"2059\" data-end=\"2091\"\u003eMotor control centers (MCCs)\u003c\/li\u003e\n\u003cli data-section-id=\"1g63lej\" data-start=\"2092\" data-end=\"2133\"\u003eIndustrial power distribution systems\u003c\/li\u003e\n\u003cli data-section-id=\"13cmzo7\" data-start=\"2134\" data-end=\"2160\"\u003eTransformer protection\u003c\/li\u003e\n\u003cli data-section-id=\"t0h0e6\" data-start=\"2161\" data-end=\"2196\"\u003eFeeder circuits and sub-feeders\u003c\/li\u003e\n\u003cli data-section-id=\"1wibwmd\" data-start=\"2197\" data-end=\"2213\"\u003eHVAC systems\u003c\/li\u003e\n\u003cli data-section-id=\"svguz\" data-start=\"2214\" data-end=\"2262\"\u003ePumps, compressors, and heavy-duty machinery\u003c\/li\u003e\n\u003cli data-section-id=\"gsty6o\" data-start=\"2263\" data-end=\"2306\"\u003eCommercial and industrial installations\u003c\/li\u003e\n\u003cli data-section-id=\"w61v3a\" data-start=\"2307\" data-end=\"2372\"\u003eSystems requiring inrush tolerance with high fault protection\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mersen","offers":[{"title":"NEW","offer_id":48494286700793,"sku":"AJT250","price":168.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/PHP-AJT250-Mersen-TIMG_jpg.webp?v=1780845498","url":"https:\/\/mycircuitbreakers.com\/products\/mersen-ajt250-fuse-class-j-250a-600vac-500vdc-time-delay-blade-fuse-amp-trap-2000%c2%ae-ajt","provider":"My Circuit Breakers","version":"1.0","type":"link"}