From the ManufacturerThe General Electric Double-Pole 40-Amp Half Size Circuit Breaker is ideal for protecting your power system from irritating and potentially dangerous circuit breaker problems. It has two poles, a thin one-inch format, 120/240 VAC, and 10,000 A.I.C. View-Pak's line of individual circuit breakers means that you can easily and conveniently replace a circuit breaker to maintain the top performance of your electrical system, and with View-Pak's wide variety you can be sure you'll find the specific circuit breaker you need. This circuit breaker is made by General Electric.