Electrical Connection - Wilo -Stratos GIGA2.0-I Einbau- Und Betriebsanleitung

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Electrical connection

Installation and operating instructions • Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D • Ed.02/2022-07
DANGER
Risk of fatal injury due to electrical current!
The use of a thermal overload protection is recommended!
Improper conduct when carrying out electrical work can lead to death
due to electric shock!
• Electrical connection may only be carried out by a qualified electrician
and in accordance with the applicable regulations!
• Adhere to accident prevention regulations!
• Before beginning work on the product, make sure that the pump and
drive are electrically isolated.
• Make sure that no one can turn on the power supply again before
work is completed.
• Make sure that all energy sources can be isolated and locked. If the
pump was switched off by a safety device, it must be secured against
switching back on again until the error has been remedied.
• Electrical machines must always be earthed. Earthing must be appro-
priate for the drive and meet the relevant standards and regulations.
Earth terminals and fixation elements must be suitably dimensioned.
• Connection cables must never touch the piping, pump or motor
housing.
• If it is possible for persons to come into contact with the pump or the
pumped fluid, the earthed connection must also be fitted with a re-
sidual current circuit breaker.
• Observe the installation and operating instructions for the accessor-
ies!
DANGER
Risk of fatal injury due to contact voltage!
Touching live parts will result in serious injuries or death!
Even when it is disconnected, high contact voltages can still occur in the
electronic module due to non-discharged capacitors. Therefore, work on
the electronic module must not be started until 5 minutes have elapsed!
• Disconnect all poles of the supply voltage and secure against recon-
nection!
• Check whether all connections (including potential-free contacts) are
voltage-free!
• Never insert objects (e.g. nail, screwdriver, wire) into openings on the
electronic module!
• Reinstall removed safety devices (such as module covers)!
DANGER
Risk of fatal electrical shock! Generator or turbine operation
during pump flow!
Even without the electronic module (without electrical connection),
there may be dangerous contact voltage at the motor contacts!
• Check for absence of voltage and cover or cordon off adjacent live
parts!
• Close the shut-off devices upstream and downstream of the pump!
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