SPJ-7B900 is an Eaton Bussmann square-body high-speed fuse rated for 900 A and up to 1,000 V, provided in a radial-bend configuration for protecting power semiconductors in high-current drives and power converters. It belongs to Bussmann’s high-speed square-body family, designed to interrupt fault currents quickly in AC and DC drives, rectifiers, and other power-electronics equipment. This SPJ-7B900 variant specifies a 900 A current rating and a 1 kV rating, making it suitable for protection of large power semiconductors in industrial motor drives and inverters.
