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Press rotary knob again for approx. 3 s or more
until the load fl ashes once.
Release the rotary knob.
Select the additional program function required
by pressing the rotary knob slowly, waiting for
the load to fl ash after each press (selected from
Table 3) before pressing again.
After approx. 10 s without operation, the change
of additional function is stored and the device
switches to standard operation.
Confi gurable
additional
functions
Factory
setting
Number of times
the rotary knob is
pressed
Kick-start
OFF
1 x
Reduced
maximum
brightness
OFF
2 x
Recovery of the
load state when
the power is
restored
OFF
4 x
Table 3: Confi gurable additional functions
Reset to factory setting
Switch off load.
Press and hold rotary knob for approx 10
seconds.
The load will fl ash once after 3 seconds and
then fl ash a second time after 10 seconds.
Release the rotary knob.
The device is in fi ne adjustment mode for the
minimum brightness level and the lamp is
switched on at the minimum brightness level.
Press and hold rotary knob again for approx 10
seconds.
The load will fl ash once after 3 seconds and
then fl ash a second time after 10 seconds.
Release the rotary knob.
The reset has been completed, the load is
switched off and the dimmer is in standard op-
eration with the factory settings being eff ective.
Information for electricians
Installation and electrical connection
DANGER!
Electrical shock when live parts are
touched!
An electric shock can lead to death!
Isolate all power before working on
the device and cover any live parts in
the area!
ç
Connection diagram
A
N
Active / L
Load /
Remote
WBMDUR
Remote cable.
Not required for
1 way switched
dimming.
Fig. 5: 1 way connection
WBMSLL
A
N
Active / L
Load /
Remote
to additional
Slaves
WBMSLL
Active
/L
Neutral
Remote
WBMDUR
Fig. 6: 2 way connection
Load side of device is not considered isolated in
OFF position.
Install a circuit breaker of max. 10 A as device
protection.
For 2 way or multiple way switching. Refer to
WBMSLL instructions.
Appendix
Technical data
Operating voltage
230 V~ +/-10%
Frequency
50 Hz
Miniature circuit breakers
max. 10 A
Degree of protection
IP2X
Standby power consumption
< 0.07 W
230 V incandescent lamps,
halogen lamps and cold-light
refl ector lamps
7 … 300 W
Dimmable, electronic
transformers with low voltage
halogen lamps
20 … 350 W
Dimmable 230 V LED lamps
3 ... 250 W
Slave units cable length
Load and slave unit cable
- in one cable
- in separate cables
max. 20 m
max. 50 m
Terminal block cables
max. 2 x 1.5 mm²
max. 1 x 2.5 mm²
Flying leads, fl exible
100 mm x 1,5 mm²
Operating temperature
-5 to 50 °C
Storage temperature
-20 to 70 °C
Relative humidity (without
dewing)
0 … 65 %
Operating conditions
Load type
Maximum output
power (W)
25 °C
35
50 °C
Ohmic loads
300
265
210
Dimmable, electronic
transformers with low
voltage halogen lamps
350
310
250
230 V LED lamps
250
220
175
Table 4: Reduced performance, ambient temperature
When operating dimmers in combination with oth-
ers beneath a cover plate, the maximum connect-
ed load must be reduced depending on the number
of dimmers.
Number of dimmers per
combination
Connect load reduction
1
100%
2
75%
3
55%
4
40%
5
35%
6
30%
Table 5: Dimmer combination load reduction
Carry out loading of conventional, electronic
transformers according to manufacturer's
instructions.
Do not use non-dimmable 230 V LED lamps.
If 230 V LED lamps are used, the power supply
to the dimmer can cause the lamp to glow
slightly even when it is switched off .
Troubleshooting
Dimmer switches off of its own accord.
The electronic overload protection has tripped.
Check the load connected (excessive load).
Reduce the number of lamps or use lamps with
a lower power rating.
The electronic short-circuit protection has tripped.
Check electrical installation.
The load cannot be dimmed down suffi ciently.
The dimming angle is set too high.
Decrease the value in fi ne-setting of the mini-
mum brightness.
The load switches off while being dimmed
down.
The dimming angle is set too low.
Increase the value in fi ne-setting of the mini-
mum brightness.
The load does not switch on.
The dimming angle and brightness value are set
too low.
Increase the value in fi ne-setting of the mini-
mum brightness.
Load fl ickers while switched off .
LED load too low.
Increase LED load at output.
The connected load cannot be dimmed or load
fl ickers while switched ON.
Lamps are not suitable for dimming.
Be sure always to use dimmable loads.
Undefi ned fault during operation.
Slave unit cable length is too long or no separate
slave unit cable has been used.
Keep to slave unit cable length or, if necessary,
use separate slave unit cable.
Note:
LED loads should be tested with this dimmer
prior to installation. Some LED loads may not be
compatible due to the type of LED driver within the
LED light.
End of life treatment of electrical/
electronic equipment and batteries
in the European Union countries.
The crossed-out ‘wheeled bin symbol’ marked on
the equipment or its packaging, indicates that this
product is not to be disposed off with unsorted
municipal / household waste. Please check with
your local authority or retailer for recycling and
collection advice. This will enable you to contribute
to the disposal, treatment and recycling in an
environmentally sound way and help to prevent
potential negative effects on the environment and
human health.
