The ABB ELECTRIC THQB1115 is a compact, one-inch wide per pole, thermal-magnetic circuit breaker designed for residential and commercial applications. As a bolt-on version of the Q Line, it is ideal for bolting to the bus connections of load centers and lighting panels. It features Quick-make / Quick-break mechanisms, common trip bars, and easy-to-spot trip indication for enhanced safety and reliability. This breaker is suitable for reverse feed applications and is available with optional accessories like auxiliary contacts and shunt trips..The ABB ELECTRIC THQB1115 is a 1-pole circuit breaker with a 15A amperage rating and a 10kAIC interrupting rating at both 120 Vac and 120/240 Vac. It operates on a system voltage of 120 Vac and 120/240 Vac. The trip function is Long-Time/Instantaneous (LI) with fixed settings. It is designed for bolt-on mounting and has a wire range of 14-8 kcmil for copper and 12-8 kcmil for aluminum. The breaker is marked for HACR and SWD applications and is GSA compliant. It has a UL File # E11592 and is CSA and UL approved.