PowerPacT M, P, and R-Frame circuit breakers offer a whole range of field installable accessories, allowing modifying the circuit breaker at any time in the design and build cycle. This handle mechanism is a 12 inch handle depth for NEMA 1/3/3R/4/12. This handle mechanism is for use with 400A 9422TG1 or 9422TG2 operating mechanisms. This product complies with UL standards.