Connections; Electrical Connections - DAB AD x.x AC series Installations- Und Wartungsanleitungen

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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.

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)

Type of possible fault currents to earth

Inverter with single-phase power

Inverter with three-phase power

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

Table 2a: Type of possible fault currents to eart

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