ECM-A3H-C20807SS1-AC SERVO MOTOR .75KW 3000RPM 4.The A3H-C20807SS1-AC ECM Servo Motor: 3000 RPM, 0.75 kW. Suitable for accurate automation in the industrial sector. robust, productive, and able to work with a variety of controllers for reliable performance in robotics, CNC, and assembly lines.