LMC24, LMC24-S Damper actuators 2 Nm
4
0
1
94.1
89
116.2
22.1
66.2
5.2
59
33.5
6...16
d0001805
Application
The type LMC24(-S) is intended for the
operation of air control dampers in venti-
lation and air-conditioning systems.
Mode of operation
Open/Close control by single-wire or
2-wire system.
Product features
Simple direct mounting
on the damper
spindle by universal spindle clamp. An
antirotation device is supplied to prevent
unwanted rotation of the whole unit.
Manual operation
by self-resetting push-
button when necessary (the gearing is
disengaged while the pushbutton is held
depressed).
Adjustable angle of rotation
with me-
chanical stops.
High functional reliability
The actuator is overload-proof, needs no
limit switches and halts automatically at
the end stops.
Flexible signalling
0…100%, with adjust-
able auxiliary switch (LMC24-S only).
Mounting instructions
, page 6
Adjusting auxiliary switch LMC24-S,
page 7.
Important
Read the notes about the use and torque
requirements of the damper actuators on
page 2.
Dampers up to approx. 0.4 m
2
Open/Close actuator
(AC/DC 24 V)
Single-wire or 2-wire control
Running time < 35 s
Dimensions
Subject to technical changes / 01.00
Direction of rotation
selected with L/R switch
Torque
min. 2 Nm
(at rated voltage)
Angle of rotation
max. 95°
(adjustable by mechanical stops)
Running time
25… 35 s
(0… 2 Nm)
Power consumption
2 W
For wiring sizing
3 VA
Nominal voltage
AC 24 V
50/60 Hz, DC 24 V
Nominal voltage range
AC/DC 19.2…28.8 V
Manual operation
pushbutton, self-resetting
Auxiliary switch
(LMC24-S)
1
×
SPDT 5(2.5) A, AC 250 V
– Switching point
adjustable 0…100%
Connecting cable
– motor
1 m long, 3
×
0.75 mm
2
– auxiliary switch
(LMC24-S)
1 m long, 3
×
0.75 mm
2
Technical data
LMC24, LMC24-S
Position indication
mechanical with pointer
Protection class
(safety low voltage)
Maintenance
maintenance-free
Weight
610 g
Degree of protection
IP 54
(bottom cable entry)
EMC
CE according to 89/336/EEC, 92/31/EEC, 93/68/EEC
Low Voltage Directive
CE according to 73/23/EEC
Ambient temperature range
– 30… + 50 °C
Non-operating temperature
– 40… + 80 °C
Humidity test
to EN 60335-1
Sound power level
max. 45 dB(A)
1
2
3
LMC24-S
S1 S2 S3
0...100%
Single-wire control
1
2
3
LMC24-S
S1 S2 S3
0...100%
2-wire control
Wiring diagram
Connect via
safety isolating
transformer
T
~
AC 24 V
-
+
DC 24 V
T
~
AC 24 V
-
+
DC 24 V
T
~
-
+
~
+
T
~
-
+
~
+
T
~
-
+
~
+ LMC24
T
~
-
+
~
+ LMC24
!
Parallel connection of several
actuators is possible. Power
consumption must be observed.
ap019901
aw089001
III
B
C
