A1B320 Circuit Breaker by Square D SQUARE D CIRCUIT BREAKER 2 POLES 20 AMPS 240 VAC TYPE A1B CAT# A1B320 Reconditioned Inventory Code: A Make an Offer Send to a Friend Type: A1B Voltage: 240 V Poles: 2 Frame Amperage: 20 A Mount: Plug-in Closing Mech.: Manual WHSE Code: L2G5 Return To Circuit Breakers