QO (plug-on) thermal-magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems.Item: Plug In Circuit BreakerAmps: 45Number of Poles: 3Circuit Breaker Type: StandardAC Voltage Rating: 240VACDC Voltage Rating: 48VDCFor Use With: QO Load Centers and NQOD PanelboardsSeries: QOTerminal Connection: Box LugMin. Wire Size: 8 AWGMax. Wire Size: 2 AWGLength: 3.00"Width: 2.25"Depth: 2.91"Standards: UL Listed, CSA CertifiedMax. AIR Rating: 10 kA