Mitsubishi MR-J4-60B4-RJ020 Description Description Mitsubishi Digital AC-Servo Amplifier MR-J4-B, for Motor Power 600 W (400), MR-J2S comp. Related products MITSUBISHI FR-A540-22K Mitsubishi FX2N-16EYT-ESS/U Mitsubishi FX2N-32ER-ES/UL MITSUBISHI AJ71E71-S3 MITSUBISHI FX0-30MR-ES MITSUBISHI E1071