Technical data sheet
NM24A-MOD
Communicative damper actuator
for adjusting dampers in technical
building installations
• Torque motor 10 Nm
• Nominal voltage AC/DC 24 V
• Control modulating, communicative,
hybrid mode
• Conversion of sensor signals
• Communication via BACnet MS/TP,
Modbus RTU, Belimo-MP-Bus or
conventional control
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 21.6...28.8 V
Power consumption in operation
3.5 W
Power consumption in rest position
1.4 W
Power consumption for wire sizing
6 VA
Connection supply / control
Cable 1 m, 6 x 0.75 mm²
Functional data
Nominal torque
Min. 10 Nm
Torque variable
25%, 50%, 75% reduced
Communicative control
BACnet MS/TP
Modbus RTU (ex works)
MP-Bus
Operating range Y
DC 2...10 V
Operating range Y variable
DC 0.5...10 V
Position feedback U
DC 2...10 V
Position feedback U note
Max. 1 mA
Position feedback U variable
Start point DC 0.5...8 V
End point DC 2...10 V
Position accuracy
±5%
Direction of motion motor
selectable with switch 0 / 1
Direction of motion note
Y = 0%: At switch position 0 for ccw rotation or
1 for cw rotation, respectively
Direction of motion variable
electronically reversible
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°
Running time motor variable
43...173 s
Adaption setting range
manual
Adaption setting range variable
No action
Adaption when switched on
Adaption after pushing the gear disengagement
button
Override control, controllable via bus
communication
MAX (maximum position) = 100%
MIN (minimum position) = 0%
ZS (intermediate position) = 50%
Override control variable
MAX = (MIN + 32%)...100%
MIN = 0%...(MAX – 32%)
ZS = MIN...MAX
Sound power level Motor
35 dB(A)
Damper spindle
Universal spindle clamp 8...26.7 mm
Position indication
Mechanically, pluggable
Safety
Protection class IEC/EN
III Safety Extra-Low Voltage (SELV)
Protection class UL
UL Class 2 Supply
Degree of protection IEC/EN
IP54
Degree of protection NEMA/UL
NEMA 2, UL Enclosure Type 2
EMC
CE according to 2014/30/EU
Certification IEC/EN
IEC/EN 60730-1 and IEC/EN 60730-2-14
www.belimo.com
NM24A-MOD • en-gb • 2018-04-26 • subject to changes
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