Belimo NF24A Quick Start Manual

Spring return actuator with emergency
function for adjusting air dampers in
ventilation and air conditioning systems
in buildings
• For air dampers up to approx. 2 m
• Torque 10 Nm
• Nominal voltage AC/DC 24 V
• Control: Open-close
Technical data
Dimensions / Weight
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Technical data sheet
2
Electrical data
Nominal voltage
Nominal voltage range
Power consumption In operation
Connection
Functional data Torque Motor
Spring return
Direction of rotation
Manual override
Angle of rotation
Running time Motor
Sound power level Motor
Service life
Position indication
Safety Protection class
Degree of protection
EMC
Certification
Mode of operation
Rated impulse voltage
Control pollution degree
Ambient temperature
Non-operating temperature
Ambient humidity
Maintenance
Dimensions
Weight
T2-NF24A • en • v1.1 • 06.2011 • Subject to changes
At rest
For wire sizing
Spring return
Spring return
AC 24 V, 50/60 Hz / DC 24 V
AC 19.2 ... 28.8 V / DC 21.6 ... 28.8 V
6 W @ nominal torque
2.5 W
8.5 VA
2
Cable 1 m, 2 x 0.75 mm
Min. 10 Nm @ nominal voltage
Min. 10 Nm
Can be selected by mounting L / R
With hand crank and interlocking switch
Max. 95° , can be limited with adjustable
mechanical end stop
≤75 s (0 ... 10 Nm)
≤20 s @ –20 ... 50°C / max. 60 s @ –30°C
≤45 dB (A)
≤62 dB (A)
Min. 60,000 emergency positions
Mechanical
III Extra low voltage
UL Class 2 Supply
IP54
NEMA2, UL Enclosure Type 2
CE according to 2004/108/EC
Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14
cULus according to UL 60730-1A and UL 60730-2-14
and CAN/CSA E60730-1:02
Type 1.AA
0.8 kV
3
–30 ... +50°C
–40 ... +80°C
95% r.h., non-condensating
Maintenance-free
See «Dimensions» on page 3
Approx. 1.8 kg
NF24A
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