Eaton FWH-100B Fast Acting Fuse With Holders

Eaton Bussmann FWH-100B is a fast-acting semiconductor fuse rated at 100 amperes and 500 volts, designed to protect power electronics and semiconductor devices from overloads and short circuits. As part of the FWH high-speed family, the 100B variant delivers rapid current interruption with an I2t performance suitable for demanding applications, featuring a rated voltage of 500 VAC and 500 VDC, and an interruption rating of up to 200 kA at 500 VAC (and 50 kA at 500 VDC) to handle fault conditions in industrial and commercial equipment. The device is UL Recognized with CSA and CE markings, reflecting its compliance for North American and international use. The FWH-100B is typically used in conjunction with Bussmann finger-safe holders/blocks in equipment enclosures and control panels, making it a common choice for protecting DC link paths, power supplies, motor drives, and other high-energy semiconductor circuits where fast clearing is essential. With its compact fast-acting design and high current rating, it provides precise protection against overcurrent while minimizing watts loss during normal operation, supporting reliable performance in demanding electrical systems.