200A 600VAC Class J High-Interrupting Time-Delay Blade-Terminal Fuse, Amp-Trap Monolithic Industrial Safety Protection Series, 200,000A Interrupting Sinking Capacity Breaking Threshold, High-Conductivity Heavy-Duty Brass Contact Blade Terminals, 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 A4J200. Stepping beyond the baseline cylindrical ferrule profiles into an upscaled knife-blade terminal mechanical format required for high-power interfaces, this 200-Amp Class J power module provides extreme overcurrent screening across master factory floor panels and large multi-phase transformers. Its robust structural blade configuration drops line insertion resistance to near-zero margins, ensuring reliable parameter preservation through severe thermal transitions and heavy industrial cycle operations. | Industry Exact Equivalents:Ferraz Shawmut A4J200, Mersen A4J200, Gould A4J200, Bussmann LPJ-200SP, Littelfuse JTD200, Edison JDL200 | Industry Functional Cross-References: Class J Fuses, Class J 200A Fuses, Blade-Terminal 600V Class J Fuses, Mersen A4J Series | Military Specification National Stock Number (NSN): 5920-00-142-9304 (Base 200A 600V Blade Class J Fuse Matrix)