WMZD1C40 Circuit Breaker by Eaton, Cutler Hammer or Westinghouse EATON MINIATURE CIRCUIT BREAKER 1 POLE 40 AMPS 125 VAC CAT# WMZD1C40 New Surplus Inventory Code: Z+ Make an Offer Send to a Friend Voltage: 277 V Poles: 1 Frame Amperage: 40 A Mount: Plug-in WHSE Code: CB25A3 Return To Circuit Breakers