Belimo SM24A-MA - damper actuator

Belimo SM24A-MA damper actuator

Configurable actuator for controlling dampers in building services systems. Designed for air dampers with an area of up to approximately 4 m². It is mounted on the damper shaft using a reversible universal clamp; the included anti-rotation mechanism prevents the actuator from turning.

Key features and parameters

• Motor torque: 20 Nm; nominal voltage: AC/DC 24 V, 50/60 Hz.
• Modulating control: 4...20 mA; position feedback signal: 2...10 V.
• Motor running time: 150 s / 90°; adjustable running time: 90...350 s.
• Rotation angle: max. 95°, limited on both sides by adjustable mechanical stops.
• Direction of movement selected by 0/1 switch; manual adjustment by push-button, with lock option.
• Reversible universal mounting clamp 10...20 mm and mechanical position indicator.
• Power and control connection: 1 m cable, 4x 0.75 mm².
• Power consumption during operation: 3.5 W; in rest position: 1.25 W; sizing power: 6 VA.
• IEC/EN IP54 protection rating; IEC/EN protection class III, Safety Extra-Low Voltage (SELV).
• Ambient temperature: -30...50°C [-22...122°F].

Individual parameters can be changed using Belimo Assistant 2. The actuator is protected against overload and stops automatically when it reaches the end position.