Square D 10-Amp 1 Pole Circuit Breaker

QO Circuit breakers snap into QO Load Centers in our "load centers" section. They are UL listed for DC branch circuits up to 48VDC (not for use in 48V systems). They can also be used for 120 VAC (1-Pole) or 120/240VAC (2-Pole) circuits. Circuit breakers in 10A to 30A sizes can handle one or two #14-#10 wires or one #8 wire. Circuit Breakers 40A - 70A will handle #8 - #2 wire sizes.