Mitsubishi HK-KT63WBK 3-Pole Circuit Breaker 20-25A 36kA at 440VAC

The Mitsubishi HK-KT63WBK is a 3-pole automatic circuit breaker designed for reliable overcurrent and short-circuit protection in industrial electrical distribution systems. It features an adjustable rated current (Ir) range of 20 to 25 amperes, allowing the operator to set the trip threshold according to the specific load requirements of the circuit being protected. The HK-KT63WBK offers an ultimate short-circuit breaking capacity (Icu) and a service short-circuit breaking capacity (Ics) of 36 kA at 440 VAC, providing robust fault-current interruption capability suitable for demanding industrial environments. Its 3-pole configuration ensures simultaneous disconnection of all three phases, which is essential for safe isolation and protection of three-phase loads such as motors, drives and distribution panels. This circuit breaker is intended for use in control cabinets and power distribution boards where dependable circuit protection and compact design are required.