Mitsubishi HK-KT7M3BG5-1-45 3-Pole Circuit Breaker 125-250A

The Mitsubishi HK-KT7M3BG5-1-45 is a 3-pole molded case circuit breaker designed for electrical distribution and protection applications. It features an adjustable rated current (Ir) range of 125 to 250 amperes, providing flexibility for different load requirements. The unit offers a rated ultimate short-circuit breaking capacity (Icu) equal to the rated service short-circuit breaking capacity (Ics) of 65 kA at 440V AC, ensuring reliable protection under fault conditions without degradation of performance. This circuit breaker is suitable for use in industrial power distribution panels, motor control centers, and other electrical installations where dependable overcurrent and short-circuit protection is required. The equal Icu and Ics ratings indicate that the breaker maintains full operational capability even after interrupting a fault at its maximum rated breaking capacity. The 3-pole configuration makes it appropriate for three-phase AC power systems commonly found in industrial and commercial environments.