A1B120 Circuit Breaker by Square D SQUARE D CIRCUIT BREAKER 1 POLE 20 AMPS 120 VAC CAT# A1B120 Reconditioned Inventory Code: B Make an Offer Send to a Friend Type: A1B Voltage: 120 V Poles: 1 Frame Amperage: 20 A Mount: Bolt-in Closing Mech.: Manual WHSE Code: L2G5 Return To Circuit Breakers