EHD1020Z01 Circuit Breaker by Eaton, Cutler Hammer or Westinghouse EATON CIRCUIT BREAKER 1 POLE 20 AMP 277 VAC CAT # EHD1020Z01 New Surplus Inventory Code: A Make an Offer Send to a Friend Voltage: 277 V Poles: 1 Frame Amperage: 20 A Mount: Bolt-in WHSE Code: CB34D4 Return To Circuit Breakers