Mitsubishi HK-KT43G5-1-11 Regenerative Converter Unit for MELSERVO J4 Series

The Mitsubishi HK-KT43G5-1-11 is a regenerative converter unit designed for use with the MELSERVO J4 series servo drive systems. This unit is rated for a nominal output of 300 Watts (0.3 kW) and incorporates a 22 Ohm regenerative resistance. It operates on a 400 Volt AC supply voltage, making it suitable for three-phase industrial power environments. The regenerative converter unit absorbs excess energy generated during servo motor deceleration or braking, converting it into heat through the built-in resistance. This protects the servo amplifier from overvoltage conditions and ensures stable, reliable operation during dynamic motion profiles. The HK-KT43G5-1-11 is functionally equivalent to the Mitsubishi MR-RB3U4 regenerative option. It is commonly used in CNC machinery, automated assembly lines, packaging equipment, and other applications where Mitsubishi MELSERVO J4 servo drives are deployed. This unit is an essential component for maintaining safe and efficient energy dissipation in servo-driven systems requiring frequent acceleration and deceleration cycles.