Bussmann FWA-200B Semiconductor Protection Fuse

The Bussmann FWA-200B semiconductor protection fuse is a high-speed, bolt-on fuse rated for 200 A and 150 V AC, designed to shield power semiconductors in demanding drive and converter applications. It belongs to Bussmann’s FWA family, a line specifically targeted at semiconductor protection where rapid fault interruption is essential. The bolt-on body measures about 2-21/32 inches in length with a 1-inch diameter, enabling mounting in compatible fuse blocks or power-electronic assemblies. This device is intended to protect power semiconductor devices such as IGBTs and diodes in drives, inverters, and DC-link circuits by swiftly interrupting fault currents. The FWA-200B is part of the Eaton Bussmann semiconductor protection lineup, reflecting the series’ emphasis on fast response and reliable protection for critical electronics.