QO320 Circuit Breaker by Square D SQUARE D CIRCUIT BREAKER 3 POLE 20 AMPS 240 VAC TYPE QO CAT# QO320 Reconditioned Inventory Code: B Make an Offer Send to a Friend Type: QO Voltage: 240 V Poles: 3 Frame Amperage: 20 A Mount: Plug-in Return To Circuit Breakers