HGHB1030 Circuit Breaker by Eaton, Cutler Hammer or Westinghouse EATON 3 POLE 30 AMP 277 VAC CAT#HGHB1030 Make an Offer Send to a Friend Voltage: 277 V Poles: 3 Frame Amperage: 30 A Mount: Bolt-in Closing Mech.: Manual Return To Circuit Breakers