Belimo SM24A-VST - rotary actuator for VAV and CAV dampers

Belimo SM24A-VST

VAV-Universal rotary actuator for VAV and CAV units in building services systems. Designed for air dampers with an area of up to approx. 4 m².

Key features and specifications

• Torque: 20 Nm; rated voltage: AC/DC 24 V, 50/60 Hz.
• PP communication control; motor running time: 120 s / 90°.
• Maximum rotation angle: 95°; adjustable mechanical stops on both sides.
• Universal shaft clamp 10...20 mm and mechanical, plug-in position indicator.
• Manual override by push-button, with locking option.
• Power and control connection: 0.5 m cable with VST connector.
• Power consumption during operation: 2 W; at rest: 0.4 W; for cable sizing: 4 VA.
• Degree of protection IEC/EN IP54; protection class IEC/EN III, Safety Extra-Low Voltage (SELV).
• Ambient temperature: -30...50°C [-22...122°F].

Actuator adaptation is required after system commissioning and after every change to the rotation angle.