Description
SM24A-S Damper Actuator
Product Overview
The SM24A-S Damper Actuator from Belimo is designed for adjusting dampers in technical building installations. Suitable for air damper sizes up to approximately 4 m², this actuator ensures high functional reliability and flexibility in signaling with its integrated auxiliary switch.
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Technical Specifications
Electrical Data
- Nominal Voltage: AC/DC 24 V
- Nominal Voltage Frequency: 50/60 Hz
- Nominal Voltage Range: AC 19.2...28.8 V / DC 19.2...28.8 V
- Power Consumption in Operation: 2 W
- Power Consumption in Rest Position: 0.2 W
- Power Consumption for Wire Sizing: 4 VA
- Connection Supply/Control: Cable 1 m, 3x 0.75 mm²
- Parallel Operation: Yes (note the performance data)
Functional Data
- Torque Motor: 20 Nm
- Direction of Motion Motor: Selectable with switch 0 (ccw rotation) / 1 (cw rotation)
- Manual Override: With push-button, can be locked
- Angle of Rotation: Max. 95°
- Angle of Rotation Note: Can be limited on both sides with adjustable mechanical end stops
- Running Time Motor: 150 s / 90°
- Sound Power Level, Motor: 45 dB(A)
- Mechanical Interface: Universal shaft clamp reversible 10...20 mm
- Position Indication: Mechanical, pluggable
Safety Data
- Protection Class IEC/EN: III, Safety Extra-Low Voltage (SELV)
- Power Source UL: Class 2 Supply
- Protection Class Auxiliary Switch IEC/EN: II, reinforced insulation
- Degree of Protection IEC/EN: IP54
- Degree of Protection NEMA/UL: NEMA 2
- Enclosure UL: Enclosure Type 2
- EMC: CE according to 2014/30/EU
- Certification IEC/EN: IEC/EN 60730-1 and IEC/EN 60730-2-14
- UL Approval: cULus according to UL60730-1A, UL60730-2-14 and CAN/CSA E60730-1
Environmental Data
- Ambient Humidity Max.: 95% RH, non-condensing
- Ambient Temperature: -30...50°C [-22...122°F]
- Storage Temperature: -40...80°C [-40...176°F]
- Servicing: Maintenance-free
- Weight: 1.0 kg
Additional Features
Simple Direct Mounting: On the damper shaft with a universal shaft clamp, includes an anti-rotation device.
Adjustable Angle of Rotation: With mechanical end stops.
High Functional Reliability: Overload protected, requires no limit switches, and automatically stops when the end stop is reached.
Flexible Signalling: With adjustable auxiliary switch (0...100%).
Accessories
Electrical Accessories: Auxiliary switch 1x SPDT add-on, Auxiliary switch 2x SPDT add-on, Feedback potentiometer (various types).
Mechanical Accessories: Actuator arm, Shaft extension, Ball joint, Damper crank arm, Shaft clamp, Anti-rotation mechanism, Form fit insert, Mounting kit, Position indicator, Baseplate extension.
Why Choose the SM24A-S Damper Actuator?
Reliable Performance: Ensures consistent and efficient damper adjustment for HVAC systems.
Versatile Application: Suitable for a wide range of environmental conditions and damper sizes.
Maintenance-Free: Designed to be maintenance-free, reducing long-term operational costs.
Certified Quality: Meets rigorous safety and performance standards with multiple certifications.
Explore all Belimo products on our website (http://www.ecospares.co.uk). For any assistance, please get in touch with us!
