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6.7 Drain holes
When the motor is installed in moist surroundings or
areas with high humidity, the bottom drain hole must
be open. The enclosure class of the motor will then
be lower. This helps prevent condensation in the
motor as the motor becomes self-venting, and it
allows water and humid air to escape.
The motor has a plugged drain hole on the drive
side. You can turn the flange 90 ° to both sides or
180 °.
B3
B14
Fig. 3
Drain holes
7. Electrical installation
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply to the motor
and to the signal relay. Wait at least 5
minutes before you make any
connections in the terminal box. Make
sure that the power supply cannot be
accidentally switched on.
DANGER
Electric shock
Death or serious personal injury
- Check that the supply voltage and
frequency correspond to the values
stated on the nameplate.
If the power cable is damaged, it must be replaced
by the manufacturer, the manufacturer's service
partner or a similarly qualified person.
The user or the installer is responsible for the
installation of correct earthing and protection
according to local regulations. All operations must be
carried out by a qualified electrician.
7.1 Protection against electric shock,
indirect contact
WARNING
Electric shock
Death or serious personal injury
- Connect the motor to protective earth
Protective-earth conductors must always have a
B5
yellow and green (PE) or yellow, green and blue
(PEN) colour marking.
7.1.1 Protection against mains voltage transients
The motor is protected against mains voltage
transients in accordance with EN 61800-3.
7.1.2 Motor protection
The motor requires no external motor protection. The
motor incorporates thermal protection against slow
overloading and blocking.
7.2 Cable requirements
7.2.1 Cable cross-section
DANGER
Electric shock
Death or serious personal injury
- Always comply with local regulations as
3 x 380-480 V
Power
[kW]
0.25 - 2.2
3.0 - 5.5
and provide protection against indirect
contact in accordance with local
regulations.
to cable cross-sections.
Cross section
Conductor
type
2
[mm
]
Solid
1.5 - 10
Stranded
1.5 - 10
Solid
2.5 - 10
Stranded
2.5 - 10
[AWG]
16-8
16-8
14-8
14-8
7
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