FeaturesThe QB breakers are bolt-on versions of the Q-Line® used for bolting to the bus connections of loadcenters and lighting panelsAll Q-Line® circuit breakers feature quick-make quick-break mechanisms, common trip bars and easy to spot trip indication to ensure safety and reliabilityQ line breakers are available in 1, 2 and 3-pole versions and can be ordered with auxiliary contact and shunt trip accessories and can be ordered for use in HID applicationsFixed instantaneous trip functionCopper aluminum wireFactory installed 120 VAC shunt trip