Product Info Catalog Electrical & Lighting Fuses & Circuit Breakers Breakers QO 20A SP DFC Breaker QO 20A SP DFC Breaker QO 20A SP DFC Breaker Request a Quote UPC: 785901401681 Manufacturer: Square D By Schneider Electric SKU: 192258 Model Number: QO120DFC QO, 20A Single Pole Circuit Breaker, 1 Space Per Pole, Dual Function Circuit Breaker, Combination Arc Fault Circuit Interrupters CAFI, 120V, Bulk.