Belimo LF24-S - Page 41

V4. 12. 2010
.
Subject to modification
41
Technical data
Dimensions [mm]
Mechanical Fail-Safe Damper Actuator NFU-S2
Electrical data
Nominal voltage AC 24...240V 50/60Hz, DC 24...125V
Power consumption
For wire sizing
9.5VA
Auxiliary switch
2x SPDT, 1mA...3(0.5)A, AC 250V
one fixed at 10
%
, one adjustable 10...90%
Nominal voltage range
AC 19.2...264V, DC 20.4...126.5V
Functional data
Torque - Motor
Min. 10Nm @ nominal voltage
Min. 10Nm
Direction of rotation Selectable by mounting L/R
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
< 75s (0...10Nm)
< 20s @ -20...50
°
C/max. 60s @ -30
°
C
Max. 50dB(A)
Position indication Mechanical
Life time >60,000 full cycles
Working conditions
Degree of protection IP54
Ambient temperature
-30...+50
°
C
Non-operation temperature -40...+80
°
C
Maintenance
Maintenance-free
Dimensions / weight
Weight Approximately 2200g
Dimensions (LxWxH)
236x98x58mm
Humidity test 95% RH, non-condensing
Connection
Cable 1m, 2x0.75mm
2
Protection class
II (totally insulated)
EMC
CE according to 2004/108/EC
Low voltage directive
Control pollution degree
Rated Impulse Voltage
Mode of operation
3
Supply: 4kV
Switch: 2.5kV
Type 1.AA
CE according to 2006/95/EC
6.0W @ running / 2.5W @ holding
- Spring return
- 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 24...240V/DC 24...125V
•ΓControl: Open/Close
•Γ2x SPDT auxiliary switches built-in
59 20
8
5
2-F
RONT
32 27
162
172
182
236
98
80
Standard :
¾”- clamp (with insert)
Length
≥85 10...22 14...25.4
19...25.4 12...18
12...1819...25.4
14...25.4
10
10
10...22≥15
≥15
≥15
Optional 1:
1”- clamp (without insert)
Length
≥85
½”
Damper shaft Length
≥85 10...19
10...19 14...20
14...20
Damper shaft
Damper shaft
Optional 2:
- clamp (optional via configuration)