Square D™ QO™ and QOB Miniature Circuit Breakers, QOB120VHGFI, come in bolt-on mounted version and in a complete range of amperages and interrupting ranges to fit into various QO distribution panels. Qwik-Gard™ circuit breakers provide overload and short circuit protection, combined with Class A ground fault protection. UL listed CSA certified This 1 pole QO circuit breaker is rated at 20A at 120VAC. This unit provides 22kA 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 6mA ground fault A with pigtail. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555