Mitsubishi MR-J4-500B4 Description Description Mitsubishi Digital AC-Servo Amplifier MR-J4-B for Rated Motor Power up to 5000 W (400V) Related products MITSUBISHI FX1N-40MR-DS MITSUBISHI E1071 MITSUBISHI A2NCPU MITSUBISHI FR-A540-22K Mitsubishi FX2N-16EYT-ESS/U Mitsubishi FX0N-65EC