Mitsubishi HK-KT63WWS 3-Pole Circuit Breaker 70-125A HK-KT63WWS

The Mitsubishi HK-KT63WWS is a 3-pole circuit breaker designed for industrial power distribution and equipment protection. It features an adjustable rated current (Ir) range of 70 to 125 amperes, making it suitable for a variety of three-phase load configurations. The unit provides a breaking capacity (Icu equal to Ics) of 36 kA at 440 VAC, ensuring reliable short-circuit protection in demanding electrical environments. This circuit breaker is part of Mitsubishi's range of low-voltage switchgear products and is intended for use in industrial automation panels, motor control centers, and power distribution systems. The 3-pole configuration allows it to protect three-phase circuits commonly found in motor drives, servo systems, and other heavy-duty equipment. The equal Icu and Ics ratings indicate that the breaker maintains full service capability even after interrupting a fault at its maximum rated breaking capacity, providing consistent and dependable protection throughout its service life.