Mitsubishi MR-J4-500B4-RJ020 Description Description Mitsubishi Digital AC-Servo Amplifier MR-J4-B, for Motor Power 5 kW (400), MR-J2S comp. Related products MITSUBISHI A3ACPUR21 Mitsubishi FX2N-16EYT-ESS/U MITSUBISHI A1ADP-SP MITSUBISHI MDS-A-SPJ-22 Mitsubishi FX2N-48ER-ES/UL MITSUBISHI MR-J2-40A