Honeywell MS8109F1210 2-Position Fire & Smoke Spring Return Actuator W/2-Switch 80 lb-in 24V

The Honeywell MS8109F1210 2-position spring return fire and smoke actuator is designed for HVAC applications. This part is used as a safety feature in case of fire or smoke alarms, it opens or closes dampers or valves to isolate areas with smoke or fires from fresh air through the HVAC system. In operation, the actuator immediately considerable force closes the damper or valve to shut off the flow of air and confine the fire. Its spring return mechanism means that the part reverts to its initial position once the alarm signal has been canceled to resume normal HVAC operation.