Mitsubishi MR-J4-DU22KB4-RJ Servo Amplifier for MELSERVO MR-J4

The Mitsubishi MR-J4-DU22KB4-RJ (MR-J4-DU22KB4-RJ) is an AC motion servo amplifier unit designed for high-performance motion control applications within the Mitsubishi Electric MELSERVO-J4 series. Engineered for industrial machinery, this drive unit delivers a rated output of 3.5 kW (3500 W) with a rated current of 17 A. It operates on a supply voltage of 200 V to 240 V AC (200 V class, 220/230 V AC) and supports both single-phase (2P) and three-phase (3P) power inputs. Equipped with an integrated dynamic brake and built-in braking resistor, the unit manages regenerative energy and provides controlled motor deceleration. It features SSCNET III/H optical communication capability, enabling high-speed, synchronized multi-axis servo motion control with compatible motion controllers. Built with an IP20 degree of protection, the amplifier is rated for ambient operating temperatures ranging from 0 to +55 degrees Celsius. The MR-J4-DU22KB4-RJ provides reliable drive performance for precise positioning, speed control, and torque management across automated production and processing machinery.