Mitsubishi MR-J4-40B-RJ020 Description Description Mitsubishi Digital AC-Servo Amplifier MR-J4-B, for Motor Power 400 W, MR-J2S comp. Related products Mitsubishi FX2N-48ER-DS Mitsubishi FX2N-32ER-ES/UL MITSUBISHI E1071 MITSUBISHI FX0-20MR-ES MITSUBISHI FR-A540-15K-EC MITSUBISHI FR-A540-22K