Available. The Mitsubishi MR-J4-70B-RJ020 is a digital AC servo amplifier from the MELSERVO-J4 series, designed to provide precise motion control in industrial automation systems. With a rated output of 700 W, it is compatible with both single-phase and three-phase 200–240 V AC power supplies, offering flexibility for various applications. The amplifier supports vector and position control modes, enabling high-performance motion control. It features built-in dynamic braking and is compatible with the MR-J2S series, facilitating seamless integration into existing systems. The MR-J4-70B-RJ020 is equipped with safety functions such as Safe Torque Off (STO) in compliance with IEC/EN 61800-5-2 standards, ensuring operational safety. Its compact dimensions (60 mm width, 168 mm height, 185 mm depth) and lightweight design (1.4 kg) make it suitable for installations with space constraints. This servo amplifier is ideal for applications requiring precise and reliable motion control, such as robotics, CNC machinery, and automated assembly lines.