A4J30

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30A 600VAC Class J High-Interrupting Time-Delay Cartridge Fuse, Amp-Trap Monolithic Industrial Safety Protection Series, 200,000A Interrupting Sinking Capacity Breaking Threshold, High-Conductivity Heavy-Duty Brass Contact End Caps, Rigid Moisture-Resistant Melamine or Fiber Tubing Enclosure Shell, Core Overcurrent and Severe Short-Circuit Thermal Safety Barrier, Code-Compliant Industrial Branch Circuit Disconnect Protection, High Stability Main Switchboard Power Node | High-performance industrial-grade high-interrupting non-renewable cartridge power fuse manufactured by Ferraz Shawmut (now Mersen) under legacy catalog ordering reference A4J30. Symmetrical multi-brand product alternative to the primary Bussmann row block above, sharing the identical 30-Amp current handling constraints, 600V insulation limits, and Class J physical ferrule dimensional metrics to function as a direct drop-in row replacement. | Industry Exact Equivalents: Ferraz Shawmut A4J30, Mersen A4J30, Gould A4J30, Bussmann LPJ-30SP, Littelfuse JTD30, Edison JDL30 | Industry Functional Cross-References: Class J Fuses, Class J 30A Fuses, 600V 30A Cartridge Fuses, Mersen A4J Series | Military Specification National Stock Number (NSN): 5920-00-142-9296 Show more