The Mitsubishi HG-SR301BJK is a 3.0 kW rotary servo motor from the HG-SR Series, spinning at a rated 1000 r/min and capable of 85.9 N·m peak torque. That torque density — 85.9 N·m from a 3.0 kW frame — tells you this motor is wound for high torque at low speed, not high-speed spindle work. It pulls 4.8 kVA from the supply at full load, so factor that into the drive sizing and the DC bus capacitance on the servo amplifier side.
Wiring and termination notes
Power and ground conductors (U, V, W) take 3.5 mm² (AWG 12) in a general environment. The electromagnetic brake pair (B1, B2) uses 0.5 mm² (AWG 20). That brake wire gauge is light — verify the brake current draw against the drive's brake output rating; if the cable run exceeds a few metres, step up to 0.75 mm² to keep voltage drop under control during hold.