Mitsubishi HK-KT63WBJWS 3-Pole Circuit Breaker 16-20A

The Mitsubishi HK-KT63WBJWS is a 3-pole circuit breaker designed for electrical distribution and equipment protection in industrial environments. It features an adjustable rated current (Ir) range of 16 to 20 amperes, allowing operators to set the trip threshold according to the specific load requirements of the protected circuit. The unit offers a rated ultimate short-circuit breaking capacity (Icu) equal to its rated service short-circuit breaking capacity (Ics) of 36 kA at 440 VAC, ensuring reliable fault interruption without degradation of protective performance even under severe short-circuit conditions. This circuit breaker is suitable for use in motor control centers, distribution panels, and automation cabinets where dependable overcurrent and short-circuit protection is required. The equal Icu and Ics values indicate that the breaker can continue to provide full protection after interrupting a fault at its maximum rated breaking capacity, making it well-suited for applications demanding high availability and operational continuity.