HKW3400F with CAT A Therm. Mag. Trip Circuit Breaker HKW, 3 Pole, 400 Amp with CAT A Therm. Mag. Trip, Molded Case Circuit Breaker from Eaton, Cutler-Hammer or Westinghouse Make an Offer Send to a Friend Type: HKW Voltage: 600 V Poles: 3 Frame Amperage: 400 A Return To Circuit Breakers