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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.

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