Honeywell MS4120F1204 Fire/Smoke Actuator 2-Position 2 Switch 175 lb-In 120V

The Honeywell MS4120F1204 Damper Actuator is designed to provide accurate control of airflow and safety in fire and smoke HVAC system applications. This 2-position actuator is fail-safe with a spring return, which means that it will close the dampers in the event of a loss of power. Two auxiliary switches are used to give feedback or control of other functions in the system. It has 175 in-lb torque and is operated at 120V, making it suitable for smoke and fire dampers in commercial HVAC systems.