Atag WS90211BAM Notice D'utilisation page 79

INSTALLATION
Connection
Electrical connection
This appliance is manufactured in class I, it must therefore be
connected to the earth system.
Make sure the supply voltage ratings correspond with those stated on
the appliance data plate. The connection to the mains is carried out as
follows:
BROWN= L phase
BLUE = N zero
YELLOW/GREEN = Earth
During the electrical connection make sure that the electrical socket is
equipped with earth connection.
This built in unit has been provided with a power plug. When installing
the hood, make sure that this plug remains accessible.
Please note!
If you want to make a fixed connection, make sure that an omnipolar
switch with a contact separation of at least 3 mm is fitted in the supply line.
EN 13