ECMA-E21320RS - AC SERVO MOTOR 2KW 2000RPM 1 . the high-performance servo motor and drive set ECMA-E21320RS from the ECMA-B2 Medium Inertia Series, developed for use in industrial automation. Featuring 2 kW of power, 220 VAC of voltage, and 11.01 Arms of constant current, it is ideal for general-purpose machine control.