WMZH3D20T Circuit Breaker by Eaton, Cutler Hammer or Westinghouse EATON CIRCUIT BREAKER 3 POLES 20 AMPS 480Y/277 VAC CAT# WMZH3D20T New Surplus Inventory Code: Z+ Make an Offer Send to a Friend Voltage: 277 V Poles: 3 Frame Amperage: 20 A Mount: Plug-in WHSE Code: CB25B3 Return To Circuit Breakers