Fail-Safe Operation and Reliable Airflow Control

Havkon’s SM Series Spring Return Damper Actuators are engineered for fail-safe damper control in HVAC systems where safety, reliability, and quick response are critical. The integrated spring return mechanism automatically drives the actuator to its default position (open or closed) in the event of a power loss, ensuring airflow control even during emergencies.

Available in 3 Nm, 5 Nm, 10 Nm and 15 Nm torque models, the SM Series supports On/Off, floating, and proportional control types. Each model is compatible with 24 V AC/DC and 230 V AC power supplies, offering flexibility across various building automation applications.

With features such as direct shaft mounting, adjustable rotation angle, manual override, and overload protection, the SM Series is designed for long-lasting performance and quick, tool-free replacement in the field.

Key Features • Spring return mechanism for fail-safe damper operation • Torque options: 3 Nm, 5 Nm, 10 Nm, 15 Nm • Control types: On/Off, Floating, Proportional • Voltage options: 24 V AC/DC and 230 V AC • Direct mounting on damper shaft • Direction switching capability • Adjustable angle of rotation • Manual override • Overload protection • Long service life with low power consumption