The QO 60 Amp 1-1/2 in. Double-Pole Circuit Breaker has a common trip with a maximum load of 240-Volt. The breaker features Qwik-Open and a Visi-Trip indicator to easily identify a tripped circuit in the load center. This circuit breaker uses a thermal-magnetic tripping mechanism and has a 10,000 AIR. This QO breaker is compatible with Square D's QO breaker boxes and CSEDs with 2 spaces.