Q line circuit breakers are one-inch wide per pole, compact, thermal-magnetic devices designed for residential and commercial applications. The QL breakers are plug-in versions of the Q Line used for connection to load centers and lighting panels. All Q Line circuit breakers feature Quick-make/Quick-break mechanisms, common trip bars and easy to spot trip indication to ensure safety and reliability. Q Line breakers are available in 1, 2 and 3 pole versions, can be ordered with auxiliary contact and shunt trip accessories and can be ordered for use in HID applications.