Mitsubishi Electric HC-KFS43 AC Industrial Servo Motor. Product number HC-KFS43 is a small power servo motor with low inertia. The rated power is 0.2 kilowatts and the rated speed is 3000 revolutions per minute (rpm). The HC-KFS43 is equipped with three electromagnetic brakes.This servo motor can regulate speed and position very precisely. The capacity of the power facility is 900 volts-amperes, and the rated output limit is 400 watts. The maximum speed is 4500 rpm while the rated speed is 3000 rpm. The input signal controls the rotor speed of the HC-KFS43 servo motor. 131,072 pulses per revolution.