Cooper Bussmann FWH-200A Semiconductor Fuse FWH-200A

Cooper Bussmann FWH-200A is a 200 A, 500 V high-speed semiconductor fuse from the Bussmann line (now part of Eaton), offered in a North American style cartridge body and designed to rapidly interrupt fault currents in high-current power-electronics circuits. It is specified for 500 VAC or 500 VDC operation, with an interrupt rating listed as 50/200 kA to provide fast protection for semiconductor devices in feeders, inverters, and drive electronics. As a semiconductor fuse, the FWH-200A protects circuits featuring power supplies, motor drives, and other 500 V class equipment by opening quickly on overcurrent conditions to limit fault energy and prevent damage to downstream devices. This fuse is commonly used in industrial controls and power conversion systems where fast clearing is essential to protect diodes, IGBTs, and other high-current switching devices. Availability and cross-listing across Eaton Bussmann, Mouser, Kirby Risk, Radwell, and other distributors confirm its status as a standard, cross-compatible component in North American electrical protection schemes.