What the 3.0 kW rating means for your axis
The MR-JE-300A+HG-SN302J is a matched servo amplifier and motor pair from the MR-JE series, delivering 3.0 kW rated output through sine-wave PWM control. That 3.0 kW figure is the continuous mechanical power the motor can sustain at rated speed — not a peak or short-term overload rating. Rated current sits at 11.0 A, with a maximum current of 33 A available for acceleration and deceleration transients. The 42.9 N·m maximum torque gives you the muscle for high-inertia loads like rotary tables or indexing conveyors where the breakaway torque requirement exceeds the running torque. Rated speed is 2000 r/min — this is the base speed at which the motor delivers full rated torque continuously. Above that, the torque curve drops off as the drive enters constant-power territory.
Current production — no obsolescence worry
The oil seal (J suffix) means the motor is fitted with an oil seal on the output shaft, protecting the bearing from lubricant ingress in gearbox-coupled or vertical-mount applications. Without it, oil migration from a gearbox can wash the bearing grease and shorten motor life.
Panel integration and handling
The MR-JE-_A amplifier uses a general-purpose interface (A type), meaning it accepts standard pulse-train and analog speed/torque commands from a motion controller or PLC. No dedicated fieldbus module is required for basic positioning.
Sourcing this servo combo
The MR-JE-300A+HG-SN302J is sourced to order against your BOM through independent distribution.