WHAD HE 3-4-5-6 kVA
EN
25
3.2.1 Safety regulations and warnings
DANGER
Before proceeding with the operations, it is necessary to read and apply what is reported below. Proceeding with
the operations if one or more of the following conditions have not been met is prohibited.
• Read and comply with the precautions indicated in chapter 2.
• The UPS has a high leakage current. It is essential to make the earth connection before connecting the power supply. It
is necessary to make sure that the switchgear has a safe connection with the earth circuit and adequate protection as
required by the installation standards.
• The UPS must only be installed in a fixed way with a thermal-magnetic circuit breaker and/or fuse placed upstream of it.
Connection of the unit to the mains by means of a traditional plug is not allowed.
• The switchgear or the disconnector must be installed near the equipment and must be easily accessible.
• Do not carry out the installation if there is water or humidity around.
• Check there is no mains voltage on the equipment.
• Check that the loads are off and disconnected from the UPS.
• Check the UPS is off and no voltage is present.
3.2.2 Preliminary operations
Before connecting the UPS, check that:
• The mains input voltage and frequency correspond with the values indicated in the technical data on the UPS rating
plate.
• The earthing has been carried out in compliance with IEC (International Electrotechnical Commission) standards or local
regulations.
• The electrical system has been fitted with the necessary residual-current and thermal-magnetic protections upline from
the UPS input.
3.2.3 Wiring
1. Wire the Input-Output connectors supplied.
OUTPUT
INPUT
CAUTION
Check the connections carefully! The UPS does not have protections against connection errors.
2. Connect the loads, making sure that the switches of the various users are off.
3. Fasten the cables to the cover using the cable fastener. Leave enough cable lengths to allow the connectors to be
connected to their seats.
