The Schneider Electric MD10B-24 is a rotary actuator with a 150 seconds drive time which is generally used to drive rotary valves or dampers on AHU's. The Schneider Electric MD10B-24 Actuator comes with a anti rotational bar for use on a AHU damper. The position of the Schneider Electric MD10B-24 is determined by a 24volts ac drive signal.