Mitsubishi HK-KT7M3G5-1-11 4-Pole Circuit Breaker 175-250A

The Mitsubishi HK-KT7M3G5-1-11 is a 4-pole molded case circuit breaker designed for power distribution and equipment protection in industrial electrical systems. It features an adjustable rated current (Ir) range of 175 to 250 amperes, allowing flexible configuration to match the specific load requirements of the protected circuit. The unit provides a rated ultimate short-circuit breaking capacity (Icu) equal to the rated service short-circuit breaking capacity (Ics) of 36 kA at 440 VAC, ensuring full protection under fault conditions without degradation in performance. With its 4-pole configuration, this circuit breaker is suitable for three-phase systems with a neutral conductor, providing comprehensive overcurrent and short-circuit protection across all poles. It is intended for use in industrial switchgear, motor control centers, and distribution panels where reliable circuit protection at medium current ratings is required. The HK-KT7M3G5-1-11 is a direct replacement spare part for existing Mitsubishi switchgear installations, ensuring compatibility and continued operational safety.