Belimo SM24A-S User Manual

Technical data sheet SM24A-S
www.belimo.com SM24A-S • en-gb • 2022-07-18 • Subject to change 1 / 4
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
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
Auxiliary switch 1 x SPDT, 0...100%
Switching capacity auxiliary switch 1 mA...3 A (0.5 A inductive), AC 250 V
Connection supply / control Cable 1m, 3 x 0.75mm²
Connection auxiliary switch Cable 1m, 3 x 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 Mechanically, 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
Low voltage directive CE according to 2014/35/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
The UL marking on the actuator depends on
the production site, the device is UL-compliant
in any case
Mode of operation Type 1.B
Rated impulse voltage supply / control 0.8kV
Rated impulse voltage auxiliary switch 2.5kV
Pollution degree 3

Belimo SM24A-S Specifications

General

Brand	Belimo
Model	SM24A-S
Category	Controller
Language	English