Mitsubishi HK-KT7M34WB 4-Pole Circuit Breaker 90-125A 36kA at 440VAC

The Mitsubishi HK-KT7M34WB is a 4-pole molded case circuit breaker designed for three-phase electrical distribution and protection applications. It features an adjustable rated current (Ir) range of 90 to 125 amperes, allowing flexible configuration to match specific load requirements. The unit provides a breaking capacity (Icu = Ics) of 36 kA at 440 VAC, ensuring reliable fault current interruption in demanding electrical environments. This circuit breaker is suitable for use in industrial power distribution panels, motor control centers, and other applications where dependable overcurrent and short-circuit protection is required. The 4-pole configuration provides switching and protection on all three phases plus the neutral conductor, making it appropriate for systems where neutral isolation is necessary. The equal Icu and Ics ratings indicate full-performance breaking capability, meaning the breaker can continue to operate at its rated performance even after interrupting a fault at its maximum breaking capacity. The HK-KT7M34WB is a direct replacement part for Mitsubishi switchgear installations requiring this specification.