Mitsubishi HK-KT43BG5-1-11 Regenerative Converter Unit for MELSERVO J4 Series

The Mitsubishi HK-KT43BG5-1-11 is a resistance regenerative converter unit designed for use with the Mitsubishi Electric MELSERVO J4 servo drive series. It is functionally equivalent to the Mitsubishi MRRB13V4 regenerative braking resistor unit and serves to absorb and dissipate the regenerative energy produced during servo motor deceleration and braking cycles. By converting excess kinetic energy into heat through a built-in resistive element, the unit protects the servo amplifier from over-voltage conditions and ensures stable, reliable operation in dynamic motion-control applications. The HK-KT43BG5-1-11 is intended as a direct companion component for MR-J4-series servo amplifiers and is suitable for installations where frequent acceleration and deceleration cycles generate significant regenerative energy. Typical applications include CNC machine tools, packaging machinery, material-handling equipment and robotic systems that rely on Mitsubishi MELSERVO J4 drives. For exact electrical ratings, mounting dimensions and wiring instructions, consult the official Mitsubishi MELSERVO J4 technical documentation.