QOB140 Circuit Breaker by Square D SQUARE D 1 POLE 40 AMP 120/240 VAC 50/60 HZ CAT # QOB140 Make an Offer Send to a Friend Voltage: 240 V Poles: 1 Frame Amperage: 40 A Mount: Bolt-in WHSE Code: CB26B3 Return To Circuit Breakers