Mitsubishi HK-KT63WJ 3-Pole Circuit Breaker 35-50A

The Mitsubishi HK-KT63WJ is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial electrical distribution systems. It features an adjustable rated current range of 35 to 50 amperes, allowing flexible adaptation to different load requirements. The unit provides a rated ultimate and service short-circuit breaking capacity (Icu = Ics) of 36 kA at 440 VAC, ensuring reliable fault interruption under demanding conditions. The HK-KT63WJ is suitable for use in motor control centers, power distribution panels, and other industrial installations where dependable circuit protection is essential. Its 3-pole configuration supports three-phase AC circuits commonly found in factory automation environments. This circuit breaker is a direct replacement spare part for Mitsubishi switchgear applications and is designed for DIN-rail or panel mounting in accordance with standard industrial practices.