Mitsubishi MR-J4-DU30KB4 Servo Drive Amplifier for MELSERVO MR-J4

The Mitsubishi MR-J4-DU30KB4 (MR-J4-DU30KB4) is an AC servo drive amplifier designed for high-performance motion control within the Mitsubishi Electric MELSERVO MR-J4 series. Engineered for demanding industrial automation setups, this drive provides precise velocity, position, and torque control for compatible servo motors. It operates with a three-phase AC supply voltage rating of 380 V to 480 V AC across the 400 V class, including 400 V, 415 V, and 440 V AC systems, or an alternative direct-current input of 283 V to 340 V DC. The unit delivers a rated output of 3.5 kW (3,500 W) with a rated output current of 8.6 A. For enhanced protection and system reliability, it features a built-in dynamic brake, an integrated braking resistor, and compatibility with safety units. Equipped with CC-Link communication capabilities, it interfaces seamlessly with host controllers and higher-level automation networks. Rated for IP20 degree of protection, the servo drive functions reliably in ambient operating temperatures ranging from 0 to +55 degrees Celsius. It serves as an equivalent motion solution to MRJ4350GF4RJ configurations across automated production lines, multi-axis machinery, and processing equipment.