WMZS1D30 Circuit Breaker by Eaton, Cutler Hammer or Westinghouse EATON MINIATURE CIRCUIT BREAKER 1 POLE 30 AMPS 230/400 VAC TYPE D CAT# WMZS1D30 New Surplus Inventory Code: A Make an Offer Send to a Friend Type: D Voltage: 230 V Poles: 1 Frame Amperage: 30 A Mount: Plug-in WHSE Code: CB26C4 Return To Circuit Breakers