Eaton Cutler-Hammer BAB2040S NN Circuit Breaker

The Eaton Cutler-Hammer BAB2040S NN is a two-pole circuit breaker with a 40 A rating designed for 240 V circuits. This 40 A, 240 V, 2P device provides overcurrent protection by interrupting current flow when a fault or overload occurs, helping prevent damage to wiring and connected equipment. Identified by model BAB2040S NN, it is part of the Cutler-Hammer family and intended for use in compatible Eaton electrical panels that accept this series of breakers. The 2-pole 240 V configuration makes it suitable for protecting multiwire branch circuits or any 240 V load that requires simultaneous disconnection of both hot conductors. Selecting this exact model helps ensure correct electrical fit, performance, and compatibility within Eaton’s panel ecosystem. The product is appropriate for applications where a dedicated 40 A protective device is specified for a 240 V circuit, aligning with standard electrical protection practices in installations that rely on Eaton/Cutler-Hammer components.