QO310 Circuit Breaker by Square D SQUARE D CIRCUIT BREAKER3 POLES 10 AMPS 240 VAC TYPE QO CAT# QO310 New Surplus Inventory Code: A Make an Offer Send to a Friend Type: QO Voltage: 240 V Poles: 3 Frame Amperage: 10 A Mount: Plug-in WHSE Code: CB22B1 Return To Circuit Breakers