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2.2
Connections
All the electrical connections are accessible by removing the screw on the cover, as shown in Figure 3.
Before performing any installation or maintenance operation, disconnect the inverter from the electrical mains and wait
for at least 15 minutes before touching internal parts.
Ensure that the voltage and frequency values on the inverter data plate correspond to those of the power mains.
2.2.1
Electrical connections
To improve the immunity to any noise radiated towards other equipment we recommend using separate ducts for the inverter supply
cables.
It is recommended to carry out installation as indicated in the manual, in compliance with the laws, directives and standards in force in
the place of use and depending on the application.
The product contains an inverter inside which there are continuous voltages and currents with high-frequency components (see table
1a)
Inverter with single-phase power supply
Inverter with three-phase power supply
If a differential switch is used with an inverter with three-phase power supply, in compatibility with the above indications and with the
requirements of system protection, it is advised to use a switch that is protected against sudden tripping..
Figure 3: Removing the cover to access the connections
Type of possible fault currents to earth
Alternating
Table 2a: Type of possible fault currents to eart
ENGLISH
Unipolar pulsed
73
With high-frequency
Direct
components
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