Bussmann SZQ-6C400 Semiconductor Fuse 400A 800V High Voltage

SZQ-6C400 is a Bussmann SZQ-series semiconductor fuse rated for 400 A and 800 V, a high-voltage protective device designed to interrupt fault currents in power electronics and other equipment powered from up to 800 volts. Identified by the model SZQ-6C400, this fuse is part of Bussmann's SZQ line of semiconductor protection devices, manufactured by Bussmann (now part of Eaton). The 400 A current rating and 800 V voltage rating establish its suitability for protecting power semiconductors and high-voltage circuits up to 800 V. As a semiconductor fuse, it is intended to safeguard switching devices and power modules from overload or short-circuit events by interrupting current at or above the rated level, helping to prevent damage to critical components. Within Eaton's Bussmann portfolio, SZQ fuses are marketed as high-voltage protection solutions for power electronics and DC-link circuits.