QBHCAF1020 | Eaton 20A 1-Pole 120/240V Combination Arc Fault Molded Case Circuit BreakerDescription The Eaton Cutler Hammer QBHCAF1020 is a 1 pole combination arc fault circuit breaker designed for reliable protection of residential and light commercial electrical systems. Rated at 20 amps and 120 240 VAC, it combines arc fault detection with standard thermal magnetic overload and short circuit protection. With a 22 kA interrupting capacity and a bolt on connection, the QBHCAF1020 ensures safe and consistent performance in branch circuit