Communicative rotary actuator fail-safe 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 modulating, communicative 2...10 V
variable
• Position feedback 2...10 V variable
• Conversion of sensor signals
• Communication via Belimo MP-Bus
Technical data
www.belimo.com
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
Connection supply / control
Parallel operation
Functional data
Torque motor
Torque fail-safe
Communicative control
Operating range Y
Input Impedance
Operating range Y variable
Options positioning signal
Position feedback U
Position feedback U note
Position feedback U variable
Position accuracy
Direction of motion motor
Direction of motion variable
Direction of motion fail-safe
Manual override
Angle of rotation
Angle of rotation note
Running time motor
Running time motor variable
Running time fail-safe
Running time fail-safe note
Adaptation setting range
Adaptation setting range variable
Override control
SF24A-MP • en-gb • 2020-12-14 • Subject to change
AC/DC 24 V
50/60 Hz
AC 19.2...28.8 V / DC 21.6...28.8 V
8.5 W
3.5 W
11 VA
Cable 1 m, 4 x 0.75 mm²
Yes (note the performance data)
20 Nm
20 Nm
MP-Bus
2...10 V
100 kΩ
Start point 0.5...30 V
End point 2.5...32 V
Open/close
3-point (AC only)
Modulating (DC 0...32 V)
2...10 V
Max. 0.5 mA
Start point 0.5...8 V
End point 2.5...10 V
±5%
selectable with switch L/R
electronically reversible
selectable by mounting L/R
by means of hand crank and locking switch
Max. 95°
adjustable starting at 33% in 2.5% steps (with
mechanical end stop)
150 s / 90°
70...220 s
<20 s / 90°
<20 s @ -20...50°C / <60 s @ -30°C
manual
No action
Adaptation when switched on
Adaptation after using the hand crank
MAX (maximum position) = 100%
MIN (minimum position) = 0%
ZS (intermediate position, AC only) = 50%
SF24A-MP
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