Mitsubishi MR-J4-11KB4-RJ AC Servo Amplifier for MELSERVO-J4 Series

The Mitsubishi MR-J4-11KB4-RJ (MR-J4-11KB4-RJ) is an AC motion servo amplifier engineered for the MELSERVO-J4 series. Designed for high-precision motion control applications, this servo drive features an integrated dynamic brake and provides full compatibility with external safety units. It delivers a rated output of 100 W (0.1 kW) with a rated current of 1.1 A, supporting responsive and stable drive performance across automated industrial machinery and positioning systems. Equipped with high-speed SSCNET III/H optical communication capability, the unit ensures synchronized deterministic motion networking and offers backward compatibility with MR-J2S series conversion units. The amplifier supports flexible electrical supply configurations, accepting 200 V to 240 V AC (200 V class, 220 V or 230 V AC) across single-phase or three-phase connections, as well as a 283 V to 340 V DC bus input. Built with an IP20 degree of protection, the drive is engineered to operate reliably in ambient temperatures ranging from 0 to +55 degrees Celsius. It serves as an essential component for automated manufacturing lines, material handling, and multi-axis industrial systems.