Damper actuator for operating
air control dampers in ventilation
and air-conditioning systems for
building services installations
• For air control dampers up to
approx. 2 m
2
• Torque 10 Nm
• Nominal voltage AC/DC 24 V
• Control: modulating DC 0 ... 10 V,
position feedback DC 2 ... 10 V
Technische Daten
Dimensions / Weight
Safety notes
Technical data sheet
Nominal voltage
Electrical data
Nominal voltage range
Power consumption In operation
Connection
Torque (nominal torque)
Functional data
Control Control signal Y
Working range
Position feedback (Measuring voltage)
Position accuracy
Direction of rotation
Direction of rotation at Y = 0 V
Manual override
Angle of rotation
Running time
Sound power level
Position indication
Protection class
Safety
Degree of protection
EMC
Mode of operation
Ambient temperature range
Non-operating temperature
Ambient humidity range
Maintenance
Dimensions
Weight
• The damper actuator is not allowed to be used outside the specified field of application,
!
especially in aircraft or any other form of air transport.
• Assembly must be carried out by trained personnel. Any legal regulations or regulations
issued by authorities must be observed during assembly.
• The device may only be opened at the manufacturer's site. It does not contain any parts
that can be replaced or repaired by the user.
• The cable must not be removed from the device.
• When calculating the required torque, the specifications supplied by the damper
manufacturers (cross section, design, installation site), and the air flow conditions must
be observed.
• The device contains electrical and electronic components and is not allowed to be disposed
of as household refuse. All locally valid regulations and requirements must be observed.
AC 24 V, 50/60 Hz
DC 24 V
AC/DC 19.2 ... 28.8 V
2 W @ nominal torque
At rest
0.4 W
For wire sizing
4 VA
Cable 1 m, 4 x 0.75 mm
Min. 10 Nm @ nominal voltage
DC 0 ... 10 V, typical input impedance 100 kΩ
DC 2 ... 10 V
DC 2 ... 10 V, max. 1 mA
±5%
Reversible with switch 0 / 1
at switch position 0
Gearing latch disengaged with pushbutton,
self-resetting
Max. 95° , limited on both sides
by means of adjustable, mechanical end stops
150 s
Max. 35 dB (A)
Mechanical, pluggable
III Safety extra-low voltage
IP54 in any mounting position
CE according to 89/336/EEC
Type 1 (to EN 60730-1)
–30 ... +50°C
–40 ... +80°C
95% r.H., non-condensating (EN 60730-1)
Maintenance-free
See «Dimensions» on page 2
Approx. 800 g
Damper actuator NM24A-SR
2
resp. 1
1