Belimo SM24P - rotary actuator for dampers

Belimo SM24P – damper actuator

RobustLine rotary actuator designed to control dampers in HVAC systems, comparable industrial systems and building services installations. The documentation specifies a damper size of up to approx. 4 m².

Key features and specifications

• Torque: 20 Nm; rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
• Control: Close/Open, 3-point; motor running time: 150 s / 90°.
• Rotation angle: max. 95°; adjustable mechanical stops on both sides.
• Direction of movement selected by switch: 0 (counterclockwise) / 1 (clockwise).
• Manual override by push button with locking option; mechanical position indicator.
• Mechanical connection: universal clamp 14...20 mm.
• Power consumption during movement: 2 W; at rest: 0.2 W; sizing power: 4 VA.
• Power and control connection: 1 m cable, 3x 0.75 mm², FRNC (halogen-free).
• Degree of protection IEC/EN: IP66/67; protection class IEC/EN: III, Safety Extra-Low Voltage (SELV).
• Ambient temperature: -30...50°C [-22...122°F].

The actuator is protected against overload and stops when the end position is reached. The documentation specifies protection against corrosion, chemical effects, UV radiation, moisture and condensation.