WMZT3D30 Circuit Breaker by Eaton, Cutler Hammer or Westinghouse EATON CIRCUIT BREAKER 3 POLES 30 AMPS 480Y/277 VAC TYPE D CAT# WMZT3D30 New Surplus Inventory Code: S Make an Offer Send to a Friend Type: D Voltage: 277 V Poles: 3 Frame Amperage: 30 A Mount: Plug-in WHSE Code: CB26A3 Return To Circuit Breakers