Mitsubishi MR-J4-20B-RJ020 Description Description Mitsubishi Digital AC-Servo Amplifier MR-J4-B, for Motor Power 200 W, MR-J2S comp. Related products MITSUBISHI FR-A540-22K MITSUBISHI FR-A540-15K-EC Mitsubishi FX2N-16EYR-ES/UL Mitsubishi FX2N-48ER-DS MITSUBISHI FR-A540-0.75K-EC Mitsubishi FX2N-48ER-ES/UL