BUSSMANN 170-M-5175 Fuse 550A 1250V High Voltage

BUSSMANN 170M5175 is a high-speed, square-body industrial fuse from Eaton's Bussmann series, rated for 550 A at 1,250 V, and engineered to interrupt fault current rapidly in high-voltage power circuits found in industrial equipment, switchgear, distribution panels, and HV feeders, helping protect transformers, drives, and bus duct installations from catastrophic faults. The catalog number 170M5175 denotes a two-stud terminal configuration (2STN-style) suitable for robust, high-current connections and is compatible with Bussmann's 170M family devices, which are designed for demanding HV protection tasks encountered in modern industrial environments. In practice, this fuse is employed in HV systems where 1.25 kV is the system voltage, including industrial power distribution networks, motor drive inverters, and HV power electronics assemblies, where its fast response and high current rating help prevent cascading failures and reduce downtime.