Square D™ QO™ and QOB Miniature Circuit Breakers, QOM100VH, come in plug-in mounted version and in a complete range of amperages and interrupting ranges to fit into various QO distribution panels. With breacking capacity to 22kA. UL listed CSA certified This 2 pole QO main breaker is rated at 100A at 120/240VAC. 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.