LEGRAND 7 521 66 Mode D'emploi page 3

Connected switch with neutral
7 521 66 - 7 522 66 - 7 523 66
Requires you to buy and install the «... with Netatmo» connected starter pack
OR
Control Modul Gateway power outlet control and Home/away wireless
Pack contents :
Connected switch with neutral Site protection
(with dimmer option)
Before starting : wiring precautions
If you plan to install two-way light switches, read the following precautions :
To control a light with two or more switches, only use the following products :
AND/OR
x 1 x 1
or several or several
Wireless switches for all control points (not included in
this pack)
Do not use: two connected switches (with dimmer option) to control the same
lighting point.
Master control
Finishing plate
Connected switch with neutral (with
dimmer option)
AND
AND/OR
x 1
or several
up to 20 push but-
tons (not included in this
pack)
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Characteristics
In default operating mode (on/off ), this switch works with the following bulbs :
+ 45° C
+ 5° C
(*) For a good lighting comfort, it is recommended to use bulbs of the same type and the
same manufacturer.
In dimmer option operating mode (which can be activated via the App), this switch
functions only with dimmable bulbs (identifiable by the logo on packaging).
Tip if replacing a twoway switch :
old flush-mounted switch replaced by the wireless switch.
Neutral
Traveller 2
Use a connector to connect all 3 wires together (travellers 1 and 2 and lamp return wire).
Use an other connector for neutral wire.
Necessary safety precautions
Switch off the power at
the main circuit breaker
OFF
Make sure that the power is off before continuing with the installation.
Remove the old switch
Wire the connected switch
N (neutral) = blue
L (live) = any except
blue and green/
yellow
(earth) = green/
yellow
Frequency bands: 2.4 - 2.4835
GHz
Max. 50 m
Power level: < 100 mW
The connected light switch (with dimmer option) works with standard bulbs or
dimmable bulbs including LEDs. Using dimmable LEDs is mandatory if
dimmer mode is activated.
LED
Wire which goes back to the light
Traveller 1
2
Make sure that the power
is off before continuing
with the installation.
Option: remote control
wiring using a non-il-
luminated mechanical
pushbutton.
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