Square D™ QO™ and QOB Miniature Circuit Breakers, QOB230EPD2100, come in bolt-on mounted version and in a complete range of amperages and interrupting ranges to fit into various QO distribution panels. Are designed to provide ground fault protection of equipment. UL listed CSA certified This 2 pole QO circuit breaker is rated at 30A at 120/240VAC. This unit provides 10kA breaking capacity and bolt on mounting. A full line of features and factory installed accessories are also available such as shunt trips, auxiliary switches and alarm switches. This product includes a 30mA ground fault B protection and a alarm switch. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555