{"product_id":"mersen-ajt5-class-j-time-delay-fuse-5a-600vac","title":"Mersen AJT5 Class J Time-delay Fuse 5A 600VAC","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERSEN AJT5 is a Class J time-delay fuse rated at 5 amps, 600 volts AC, and 400 volts DC, designed for ferrule-style fuse holders. Part of the Amp-Trap 2000 series, it combines a non-indication design with a SmartSpot visual open-fuse indicator, making fault identification faster during service calls. Advanced material technology gives the AJT5 IEC Type 2 No Damage protection, safeguarding main, feeder, and branch circuit components from damage during fault events. Licensed electricians and industrial maintenance technicians are the primary installers of this fuse type.\u003c\/p\u003e\n\u003cp\u003eThe AJT5 is suited for protecting all types of loads, including motor and transformer circuits where inrush current must be tolerated without nuisance opening. Its time-delay characteristic handles typical motor starting and transformer energizing inrush currents while maintaining superior current-limiting performance during fault conditions. The ferrule form factor requires only half the mounting space of comparable 600VAC Class RK fuses, making it a practical choice for space-constrained panelboards, motor control centers, and combination starters in both commercial and industrial installations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eClass J time-delay design tolerates motor and transformer inrush currents without nuisance opens\u003c\/li\u003e\n  \u003cli\u003eSmartSpot visual open-fuse indicator allows quick identification of blown fuses without a meter\u003c\/li\u003e\n  \u003cli\u003eIEC Type 2 No Damage protection for main, feeder, and branch circuit components\u003c\/li\u003e\n  \u003cli\u003eFerrule form factor occupies half the mounting space of 600VAC Class RK fuses\u003c\/li\u003e\n  \u003cli\u003eDual voltage rating: 600 volts AC and 400 volts DC\u003c\/li\u003e\n  \u003cli\u003eSuperior current-limiting ability reduces arc flash energy and downstream damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement for Class J ferrule-style fuse holders rated for 600VAC service in motor, feeder, and branch circuit protection applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the circuit before removing or installing any fuse. Verify the fuse holder is rated for Class J ferrule fuses and confirm the circuit voltage and current ratings match the fuse specifications before energizing. Do not substitute a non-time-delay fuse in motor circuit applications where inrush tolerance is required.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: Class J\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmp Rating\u003c\/strong\u003e: 5A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating (AC)\u003c\/strong\u003e: 600 volts AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating (DC)\u003c\/strong\u003e: 400 volts DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTime-Delay\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForm Factor\u003c\/strong\u003e: Ferrule\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndicator\u003c\/strong\u003e: SmartSpot visual open-fuse indicator\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection Standard\u003c\/strong\u003e: IEC Type 2 No Damage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Amp-Trap 2000\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MERSEN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: AJT5\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERSEN","offers":[{"title":"Default Title","offer_id":68063063015730,"sku":"AJT5","price":43.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/39a28d4503afb22f97bea5988cf53eda.webp?v=1793053015","url":"https:\/\/voomisupply.com\/products\/mersen-ajt5-class-j-time-delay-fuse-5a-600vac","provider":"Voomi Supply","version":"1.0","type":"link"}