Mitsubishi HK-KT7M3BG1-1-20 3-Pole Circuit Breaker 125-160A

The Mitsubishi HK-KT7M3BG1-1-20 is a 3-pole circuit breaker designed for electrical distribution and overcurrent protection in three-phase AC power systems. This breaker features an adjustable rated current (Ir) range of 125 to 160 amperes, making it suitable for medium-capacity power circuits in industrial and commercial installations. It provides reliable short-circuit protection with an ultimate breaking capacity (Icu) and service breaking capacity (Ics) of 50 kA at 440 V AC, ensuring consistent and safe interruption performance under fault conditions. The 3-pole configuration makes the HK-KT7M3BG1-1-20 appropriate for use in motor control centers, switchgear panels, power distribution boards, and general-purpose feeder circuits. Mitsubishi circuit breakers are widely deployed across factory automation lines, building electrical infrastructure, and equipment protection applications where dependable overcurrent and short-circuit disconnection is essential. The unit is designed for straightforward installation in standard distribution panels and integrates readily into existing electrical protection schemes.