Description
The MDB actuator is a reliable and versatile solution for operating air dampers in ventilation and air conditioning systems. Designed for commercial HVAC applications, these actuators provide smooth and stable motion, ensuring precise airflow control and dependable operation over long service life.
Their compact housing, universal shaft coupling and maintenance free mechanics make installation quick and straightforward, whether used in new systems or retrofitted onto existing dampers. With a choice of control modes and versions with or without auxiliary switches, MDB actuators offer the flexibility needed to meet the requirements of modern ventilation projects.
Key Features20 Nm torque for dampers up to approximately 4 m².
Available in On/Off, floating, and proportional versions.
Power supply options: 24 V AC/DC or 85–265 V AC depending on model.
Rotation angle 0–95° with integrated mechanical limit.
Suitable for damper shafts from 9…18 mm (square) and 9…26 mm (round).
Optional versions with auxiliary SPDT switches for position signalling.
Maintenance-free, overload-protected electromechanical operation.
Quiet running and smooth positioning.
Compact IP54 rated housing for reliability in ventilation environments.
Factory supplied installation cable for quick mounting.
Benefits
Stable and accurate airflow control across a wide range of ventilation applications.
Easy installation thanks to universal damper-shaft compatibility.
Long service life with no need for mechanical adjustments or limit switches.
Quiet operation suitable for office and commercial buildings.
Optional auxiliary switches simplify integration with control panels and monitoring systems.
Applications
Air control dampers in ventilation and air conditioning systems.
Commercial HVAC units and air distribution networks.
Fresh-air, bypass, mixing and zone dampers.
Retrofits requiring actuator replacement without modifying the damper shaft.
