Belimo LF24-S - Page 42

42
V4. 12. 2010
.
Sub
j
ect to modification
Technical data
Dimensions [mm]
Electrical data
Nominal voltage AC 24V 50/60Hz, DC 24V
Power consumption in operation
For wire sizing
6.0VA
Nominal voltage range
AC 19.2...28.8V, DC 21.6...28.8V
Position feedback (Measuring voltage)
DC 2...10V, max. 1mA
Position accuracy
± 5%
Functional data
Torque - Motor
Min. 10Nm @ nominal voltage
Min. 10Nm
Direction of rotation - Motor
Direction of rotation at Y=0V
Reversible with switch or
Manual override
By manual override key
Angle of rotation
Max. 95
°
, limited on both sides
by means of adjustable, mechanical end stops
Running time - Motor
Sound power level - Motor
150s/90
°
< 20s @ -20...50
°
C/max. 60s @ -30
°
C
Max. 40dB(A)
Position indication
Mechanical
Working conditions
Degree of protection
IP54
Ambient temperature
-30...+50
°
C
Non-operation temperature
-40...+80
°
C
Maintenance
Maintenance-free
Dimensions / weight
Weight Approximately 2000g
Dimensions (LxWxH)
236x98x58mm
Humidity test
95% RH, non-condensing (EN 60730-1)
Connection
Cable 1m, 4x0.75mm
2
Mechanical Fail-Safe Damper Actuator NFU24-SR
Protection class
III (safety extra-low voltage)
EMC
CE according to 2004/108/EC
Control pollution degree
Rated Impulse Voltage
Mode of operation
3
800V
Type 1.AA
3.5W @ running/2.5W @ holding
- Spring return
- Spring return Selectable by mounting L/R
Control Control signal Y
DC 0...10V, typical input impedance 100K
Ω
DC 2...10VWorking range
-
Spring return
~62dB(A)
- Spring return
Damper actuator for operating air control dampers in ventilation
and air-conditioning systems for building services installations
•ΓTorque: 10Nm
•ΓNominal voltage: AC/DC 24V
•ΓControl: modulating DC 2(0)...10V
position feedback DC 2...10V
At switch position resp. 1
59
20
85
2-FRONT
32 
162
172
182
236
98
80
Standard :
¾”- clamp (with insert)
Length
≥85 10
10
≥15
Optional 1:
1”- clamp (without insert)
Length
≥85
≥15
½”
Damper shaft Length
≥85 10...19
≥15
10...19
Damper shaft
Damper shaft
Optional 2:
- clamp (optional via configuration)
10...22
10...22
19...25.4
19...25.4
12...18
14...20
14...20
12...18
14...25.4
14...25.4