The CFI6-40/4/03-A is a molded case circuit breaker manufactured by Eaton. It is a three-pole, 40-amp breaker that is designed for use in the company's Cutler-Hammer CE/V, CH, GHB and Westinghouse EGB, HB, KA and MB series breaker enclosure frames. It is CSA certified and has a 600V AC/250V DC interrupting rating. This circuit breaker features an adjustable short-circuit trip, indicating and lockout features and built-in thermal-magnetic protection. It is an ideal choice for residential, commercial, and industrial applications.