Eaton Bussmann Series Medium Voltage Auxiliary Transformer Fuse, VT Fuse Cartridge, Medium Voltage, 1 A, AC 15.5 kV, 327 x 41.3 mm, Back-Up, IEC, US, 1E, Auxiliary Transformer Protection, 1 A, 1E, with Actuator, 80K A Tripping Capacity, Inst Air, E, IEC, AC, Back-up Class