Product Description 50a single pole interchangeable circuit breaker, 1 inch wide, 120V, with individual upc bar code, bulk. Manufactured in china. From the Manufacturer Switching duty rating, 1" per pole, 120/240 volts, AC, 10,000 AIC interrupting rating. Thermal magnetic 40 degrees C. Interchangeable will replace: New General Electric, Murray, ITE (except Pushmatic), Bryant, General, American, Crouse-Hinds, Sylvania, Challenger and Westinghouse Type BR.