Bussmann FWH-50B High Speed Fuse (FWH Series)

The Bussmann FWH-50B High Speed Fuse is a North American style stud-mount semiconductor fuse from the FWH series, designed for fast fault clearing in power-electronic circuits. It is rated for 50 A with a voltage rating of 500 VAC and 500 VDC, and offers an interrupting rating of up to 200 kAIC at 1000 VAC and 50 kAIC at 500 VDC, making it suitable for high-energy protection. The fuse features a cylindrical body with stud-end connections and carries UL Recognized, CSA, and CE certifications, aligning with common safety standards for control panels, drives, and power supplies. Catalog references list FWH-50B within the Bussmann high-speed family, underscoring its role as a fast-acting protective device for semiconductor loads in 500-volt class systems and other power-electronic equipment.