Bussmann FWH-200B Fuse

The Bussmann FWH-200B is a North American style high-speed cylindrical fuse designed for 200 A at 500 V, with a stud-mount configuration for dependable in-line protection in power electronics such as motor drives, power converters, and rectifiers. This fast-acting FWH series device features a non-indicating fuse indicator, a 91 mm body length with a 30 x 30 mm cross-section, and a mass of about 152 g, built for both AC and DC ratings and certified for UL Recognized, CSA Certified, CE marked, and RoHS compliant usage. Electrical performance includes a 200 kAIC interrupt rating at 300 Vdc (and 50 kAIC at 300 Vdc), I2T clearing around 8500 A-s, and a pre-arc I2T around 1900 A-s, with a voltage rating of 500 Vac and 500 Vdc; this fuse is part of the Bussmann/Eaton line, offering aR-class protection for semiconductor loads and DC common bus circuits in drives and power converters.