Belimo SM24A-S Technical Data Sheet

Damper actuator for adjusting dampers in
technical building installations
• Air damper size up to approx. 4 m²
• Torque motor 20 Nm
• Nominal voltage AC/DC 24 V
• Control Open/close, 3-point
• with integrated auxiliary switch

Technical data

Functional data
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Technical data sheet
Electrical data Nominal voltage
Nominal voltage frequency
Nominal voltage range
Power consumption in operation
Power consumption in rest position
Power consumption for wire sizing
Auxiliary switch
Switching capacity auxiliary switch
Connection supply / control
Connection auxiliary switch
Parallel operation
Torque motor
Direction of motion motor
Manual override
Angle of rotation
Angle of rotation note
Running time motor
Sound power level, motor
Mechanical interface
Position indication

Safety data

Protection class IEC/EN
Power source UL
Protection class auxiliary switch IEC/EN
Degree of protection IEC/EN
Degree of protection NEMA/UL
Enclosure
EMC
Low voltage directive
Certification IEC/EN
UL Approval
Mode of operation
Rated impulse voltage supply / control
Rated impulse voltage auxiliary switch
Pollution degree
SM24A-S • en-gb • 2022-07-18 • Subject to change
AC/DC 24 V
50/60 Hz
AC 19.2...28.8 V / DC 19.2...28.8 V
2 W
0.2 W
4 VA
1 x SPDT, 0...100%
1 mA...3 A (0.5 A inductive), AC 250 V
Cable 1 m, 3 x 0.75 mm²
Cable 1 m, 3 x 0.75 mm²
Yes (note the performance data)
20 Nm
selectable with switch 0 (ccw rotation) / 1 (cw
rotation)
with push-button, can be locked
Max. 95°
can be limited on both sides with adjustable
mechanical end stops
150 s / 90°
45 dB(A)
Universal shaft clamp reversible 10...20 mm
Mechanically, pluggable
III, Safety Extra-Low Voltage (SELV)
Class 2 Supply
II, reinforced insulation
IP54
NEMA 2
UL Enclosure Type 2
CE according to 2014/30/EU
CE according to 2014/35/EU
IEC/EN 60730-1 and IEC/EN 60730-2-14
cULus according to UL60730-1A, UL60730-2-14
and CAN/CSA E60730-1
The UL marking on the actuator depends on
the production site, the device is UL-compliant
in any case
Type 1.B
0.8 kV
2.5 kV
3
SM24A-S
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