Ensure reliable power distribution with the Eaton Cutler-Hammer GBH3040 Circuit Breaker. This 3-pole, 40-amp breaker offers thermal magnetic protection and a high interrupting rating, making it suitable for various power distribution applications. Designed for durability and performance, it's a dependable choice for your electrical needs..The Eaton Cutler-Hammer GBH3040 is a 3-pole molded case circuit breaker with a 40-amp rating and a 600-volt rating. It features a thermal magnetic tripping method for LI (Long-Time and Instantaneous) functions and has an AIC rating of 10kA at 600V. The breaker has dimensions of 6.31 H x 4.12 W x 3.38 D and is designed for bolt-on connection.