Mitsubishi MR-J4-11KA4-RJ AC Servo Amplifier for MELSERVO-J4 Series

The Mitsubishi MR-J4-11KA4-RJ (MR-J4-11KA4-RJ) is an AC motion servo amplifier drive engineered for high-performance automation within the Mitsubishi Electric MELSERVO-J4 series. Serving as a precise motor control unit, this servo amplifier is designed for automated machinery, industrial motion control systems, and robotic positioning axes. It features built-in dynamic braking capabilities and dedicated safety unit compatibility to safeguard equipment and operators during sudden deceleration or emergency stops. Operating on a single-phase 100 to 120 VAC or 283 to 340 VDC power input, the unit delivers a rated output of 100 W (0.1 kW) with a rated current of 1.1 A. The drive incorporates high-speed SSCNET III/H optical communication, enabling synchronous multi-axis motion and rapid network data exchange with compatible system controllers. Encased in an IP20-rated protective housing, it operates reliably across an ambient operating temperature range of 0 to +55 degrees Celsius. This model is also referenced as equivalent to MRJ410B1RJ, making it suitable for compact machine automation, packaging, and precision assembly lines.