Product Description: The Square D NW12N is an Insulated Case Circuit Breaker from the Masterpact family. It features a 3-pole design, rated for 600V and 1200A, with a 65kA@480V AIC rating. This breaker uses a Draw-Out connection and includes Solid State protection with LSIG functionality (Long-Time, Short-Time, Instantaneous, and Ground Fault).