Mitsubishi HK-KT43G1-1-5 Regenerative Resistor Unit for MELSERVO J4 Series

The Mitsubishi HK-KT43G1-1-5 is a regenerative resistor unit designed for use with the MELSERVO J4 series servo drive systems. This unit serves as the equivalent of the MR-RB3G4, providing resistance-based regenerative energy dissipation during servo motor deceleration and braking operations. By absorbing excess kinetic energy converted into electrical energy during braking cycles, the regenerative resistor unit protects the servo amplifier from overvoltage conditions and ensures stable, reliable operation of the drive system. The HK-KT43G1-1-5 is intended for integration with Mitsubishi MELSERVO MR-J4 series servo amplifiers and is suitable for applications where frequent or high-energy braking events occur, such as machine tool axes, material handling equipment, and automated production lines. This unit is a genuine Mitsubishi Electric component, ensuring full compatibility with the MELSERVO J4 platform and straightforward installation within existing servo drive configurations.