HLD3400 with LT3400T Trip Unit Circuit Breaker HLD, 3 Pole, 400 Amp, with LT3400T Trip Unit, Molded Case Circuit Breaker from Eaton, Cutler-Hammer or Westinghouse Make an Offer Send to a Friend Type: HLD Voltage: 600 V Poles: 3 Frame Amperage: 400 A Return To Circuit Breakers