Belimo LF-2 Series Product Information

ENG-2012.11 • Subject to technical changes
12
LF230-S
S1 S2 S3
M
LF230
M
Parallel connection of several actuators is
possible. Power consumption must be observed.
AC 230 V
N L1
To isolate from the main power supply, the
system must incorporate a device which
disconnects the phase conductors
(with at least a 3 mm contact gap).
> x
< x
x = 0...100%
Wiring diagram
Application
For the operation of air dampers that
perform safety functions (e.g. frost and
smoke protection, hygiene, etc.).
Mode of operation
The LF... actuator moves the damper to its
normal working position while tensioning
the return spring at the same time. If the
power supply is interrupted, the energy
stored in the spring moves the damper
back to its safe position.
Product features
Simple direct mounting on the damper
spindle by universal spindle clamp. An anti-
rotation device is supplied to prevent un-
wanted rotation of the whole unit.
Mechanical angle of rotation limiting
adjustable with built-in stop.
High functional reliability
The actuator is overload proof, needs no
limit switches and halts automatically at
the end stop.
Flexible signalling 0...100% , with ad-
justable auxiliary switch (LF230-S only).
Adjusting the auxiliary switch LF230-S,
page 6
Mounting accessories, page 11
Mounting instructions, pages 13...15
Important: Read the notes about the use
and torque requirements of the damper
actuators on page 3.
Dampers up to approx. 0.8 m
2
Open/Close actuator
(AC 230 V)
Control by single-pole contact
Dimensions
5
LF230, LF230-S Spring return actuators 4 Nm
Auxiliary switch (LF230-S) 1 x SPDT 6 (1.5) A, AC 250 V
– Switching point
adjustable 0...100%
Nominal voltage range AC 198...264 V
Nominal voltage AC 230 V 50/60 Hz
Power consumption
– motoring 5 W
– holding 3 W
Connecting cable – motor 1 m long, 2 x 0.75 mm
2
– auxiliary switch (LF230-S) 1 m long, 3 x 0.75 mm
2
Technical data LF230, LF230-S
Position indication mechanical
Protection class II
(all insulated)
Maintenance maintenance-free
Weight 1550 g
Degree of protection IP 54
EMC CE according to 2004/108/EEC
Low Voltage Directive CE according to 2006/95/EEC
Ambient temp. range – 30...+ 50 °C
Non-operating temp. – 40...+ 80 °C
Humidity test to EN 60730-1
Torque – motor min. 4 Nm
(at rated voltage)
– spring return min. 4 Nm
Torque max. 95°
(adjustable 37...100% with built-in
mechanical stop)
Running time – motor 40...75 s (0...4 Nm)
– spring return 5 20 s @ –20...50 °C / max. 60 s @ – 30 °C
Sound power level motor max. 50 dB (A), spring 5 62 dB (A)
Service life min. 60 000 operations
For wire sizing 7 VA (Imax 150 mA @ 10 ms)
Direction of rotation selected by mounting L/R
p0051712
w0110712
0
.2
.4
.6
.8
1
155
9318
98
82
57 18.56.5
80
49
6.5
12.6
25
125
8...16
181
d0032712
BC

Belimo LF-2 Series Specifications

General

Brand	Belimo
Model	LF-2 Series
Category	Controller
Language	English