Lot of 5 GE Q-Line THQP 30-Amp 1-Pole Standard Trip Circuit Breaker - NEW The GE Q-Line 30 Amp 1/2 in. Single-Pole Circuit Breaker has a case made of heat-resistant thermoset for stability and structural integrity. The unit has a tin-plated copper stab to create a reliable, permanent and corrosion-resistant connection. The circuit breaker has a dedicated calibration screw which is cemented to prevent shifting. The attached screw creates a stable calibration for optimum performance. Q-Line plug-in breaker for residential load centers Internal common trip bar and box type terminals Quick make, quick break switch Tin-plated copper stabs create reliable, permanent and corrosion-resistant connections Calibration screw is cemented to prevent shifting Breaker case is made of heat-resistant thermoset for stability and structural integrity Trips to the center position Meets NEMA standards ANSI certified, CSA and UL Listed