The GE Q-line 20 Amp 1 in. Single-Pole Circuit Breaker has a tin-plated copper stab to create a reliable, permanent and corrosion-resistant connection. The unit has a dedicated calibration screw which is cemented to prevent shifting. The attached screw creates a stable calibration for optimum performance. The breaker case is made of heat-resistant thermoset for stability and structural integrity. Tin-plated copper stabs create a reliable, permanent and corrosion-resistant connection Box type terminals 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 and CSA and UL listed Dimensions Product Depth (in.) 1 Product Height (in.) 3 Product Width (in.) 3.375 Details Breaker Type Single Pole Electrical Product Type Breaker globalTradeItemNumber (GTIN) 00783164012866 Interruption Type Standard Trip Maximum Amperage (amps) 20 Mounting Type Plug-On Number of Poles 1 Pack Size 1 Power Distribution Features No Additional Features Product Weight (lb.) .305 Returnable 30-Day Voltage (volts) 120