Cutler-Hammer D40RCA USNT Molded Case Circuit Breaker

The Cutler-Hammer D40RCA USNT Molded Case Circuit Breaker operates as a fundamental protective device within industrial electrical distribution environments. Designed to manage continuous load currents up to 40 amperes, this breaker interrupts fault conditions to safeguard downstream equipment from thermal damage and short circuits prevalent in heavy-duty applications.

Its housing meets rigorous industry safety ratings, ensuring durability against environmental contaminants encountered in manufacturing facilities and data centers. Compatible with standard switchboard cutouts, the physical dimensions allow for seamless integration into existing panelboards requiring reliable isolation capability for routine maintenance procedures.

Operators utilize this unit to enforce safety codes and prevent electrical hazards in branch circuits supplying motors and lighting loads. The specific model designation allows technicians to quickly identify replacement parts for legacy infrastructure while maintaining consistent performance ratings across the facility's electrical grid.