Product Info Catalog Electrical & Lighting Fuses & Circuit Breakers Breakers Ground Fault Circuit Breaker, Self-Test, Single Pole, 20-Amp Ground Fault Circuit Breaker, Self-Test, Single Pole, 20-Amp Ground Fault Circuit Breaker, Self-Test, Single Pole, 20-Amp Request a Quote UPC: 786680134128 Manufacturer: Eaton Corporation SKU: 199993 Model Number: GFTCB120CS 20a, 120v, single pole, self test ground fault circuit breaker, 1" wide, for cutler-hammer loadcenters, 10k interrupting capacity.