Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service page 166

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166
Electrical connection
DANGER
Risk of fatal electrical shock!
Water on the upper part of the electronic module can enter the electronic module
when it is opened.
• Before opening, remove water, e.g. on the display, by wiping it off completely.
Avoid water penetration in general!
DANGER
Potentially fatal injury due to electronic module not being installed!
A life-threatening voltage may be present at the motor contacts!
Normal operation of the pump is only permitted with the electronic module installed.
• Never connect or operate the pump without the electronic module mounted!
CAUTION
Material damage due to improper electrical connection!
An inadequate mains design can lead to system failures and cable fires
due to mains overload!
• When designing the mains supply with regard to the used cable cross-sections and
fuses, pay special attention to the fact that, in multi-pump operation, it is possible
that all pumps operate at the same time for short periods.
CAUTION
Danger of material damage caused by improper electrical connection!
• Ensure that the current type and voltage of the mains connection correspond to the
specifications on the pump rating plate.
Threaded cable glands and threaded cable connections
There are six cable bushings to the terminal room on the electronic module. The cable
for the power supply of the electric fan on the electronic module is mounted at the
factory. The requirements for electromagnetic compatibility must be observed.
CAUTION
In order to ensure IP55, unoccupied threaded cable glands must remain closed with
the plugs provided by the manufacturer.
• When installing the threaded cable gland, make sure that a gasket is installed below
the threaded cable gland.
Threaded cable glands including gaskets for the cable bushings 2 ... 5 are enclosed with
the product as a kit.
In order to feed more than one cable through the metal threaded cable gland (M20),
two multiple inserts for cable diameters of up to 2x 6 mm are included in the kit.
1. Screw in threaded cable glands as required. Observe the tightening torque. See
"Electronic module tightening torques" [} 175] table in the "Turning the dis-
play" [} 174] section.
2. Make sure that a gasket is fitted between the threaded cable gland and the cable
bushing.
The combination of threaded cable gland and cable bushing must be made according to
the following "Cable connections" table:
WILO SE 2021-12