Mitsubishi MR-J4-40B-RJJ001 400W AC Servo Amplifier for MELSERVO-J4

The Mitsubishi MR-J4-40B-RJJ001 (MR-J4-40B-RJJ001) is an AC motion servo amplifier from the MELSERVO-J4 series engineered for precise motion control applications. Operating on a 200 V to 240 V AC supply (single-phase or 3-phase) or a 283 V to 340 V DC input, this unit delivers a rated output of 400 W (0.4 kW) with a rated current of 2.8 A. The drive incorporates high-speed SSCNET III/H optical communication, providing high-response positioning and motion synchronization in automation systems. Equipped with an integrated dynamic brake and built-in regenerative braking resistor, the MR-J4-40B-RJJ001 ensures controlled deceleration and energy dissipation. It features safety unit compatibility and is compatible with the MR-J2S-B series SSCNET conversion unit, supporting system migration and upgrades. Designed with an IP20 ingress protection rating, the unit operates within an ambient temperature range of 0 to +55 degrees Celsius. This model is also equivalent to MRJ440BRJ020.