Overview Reviews Product Description Square D QOB120 - QOB 20A Single Pole 120/240V Circuit Breaker Type: QO Poles: 1 Amps: 20 Voltage: 120/240 Product Videos Custom Field Condition New Product Reviews Write a Review Write a Review × Square D Square D QOB120 - QOB 20A Single Pole 120/240V Circuit Breaker Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *