Q-Line 20 Amp Single-Pole Arc Fault Combination Circuit Breaker (8-Pack)The GE Q Line 20 Amp 1 1 4 in. Single Pole Arc Fault Combination Circuit Breaker detects arc faults in both parallel and series wiring. The circuit breaker has a dedicated calibration screw which is cemented to prevent shifting. The attached screw creates a stable calibration for optimum performance. The unit has a tin plated copper stab to create a reliable, permanent and corrosion resistant connection. The breaker case is made of heat resistant
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