Schneider Electric (Barber Colman) MA-318-303 S/R Damper Actuator W/Auxiliary Switch 90° 24V

The Schneider Electric (Barber Colman) MA-318-303 is a 24-volt spring-return actuator with an auxiliary switch that is widely used in HVAC (Heating, Ventilation, and Air Conditioning) systems. It is an electromechanical device that operates by translating electrical signals from a thermostat into motion. The thermostat notifies the actuator when the temperature departs from the intended setpoint. The actuator then reacts to control the airflow and sustain comfortable interior temperatures by opening or closing valves, dampers, or air vents. Additional functions offered by the auxiliary switch include setting off alarms and communicating with other building automation systems. In general, the Schneider Electric (Barber Colman) MA-318-303 aids in ensuring HVAC equipment has effective and comfortable temperature management.