Mitsubishi MR-J4-10B-RJ020 AC Servo Amplifier for MELSERVO MR-J4 Series

The Mitsubishi MR-J4-10B-RJ020 (MR-J4-10B-RJ020) is an AC servo motion drive and amplifier designed for high-performance motion control within the Mitsubishi Electric MELSERVO MR-J4 series. Engineered for precise motor control and dynamic response, this servo drive features an integrated dynamic brake, a built-in braking resistor, and safety unit compatibility for automated machinery and industrial positioning systems. Operating on a 400 V class supply, the unit supports three-phase AC input voltages from 380 V AC to 480 V AC (including 400 V, 415 V, and 440 V AC) as well as DC input from 283 V DC to 340 V DC. It delivers a rated output of 1 kW (1,000 W) with a rated output current of 2.8 A. Built-in CC-Link communication capability enables seamless integration into networked industrial automation architectures. The amplifier carries an IP20 degree of protection and is rated to operate reliably within an ambient operating temperature range of 0 °C to +55 °C. Typical applications include CNC machinery, packaging equipment, robotic handling, and multi-axis automated manufacturing systems.