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EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
PSI 9000 3U Series
2.3.4 Connection to AC supply
•
Connection to an AC mains supply may only be carried out by qualified personnel!
•
Cable cross section must be suitable for the maximum input current of the device (see table
below)!
•
Before plugging in the input plug ensure that the device is switched off by its mains switch!
The device is delivered with a 5 pole mains plug. Depending on model, this will be connected with a 2-phase or
3-phase mains supply, which has to be connected according to the description on the plug and the table below.
Required for the mains connection are following phases:
Nominal power Phases
Supply type
3.3 kW / 5 kW
L2, L3, PE
Three-phase
6.6 kW / 10 kW L1, L2, L3, PE
Three-phase
15 kW
L1, L2, L3, PE
Three-phase
>15 kW
L1, L2, L3, PE
Three-phase
For the sizing of wiring
cross section,
the power of the device and the cable length are decisive. The table below
gives the maximum input current for each phase as well the recommended cross section for cable lengths up to 5m.
Bsed on the connection of a
standalone unit
:
L1
L2
L3
Nominal power
ø
I
max
ø
I
max
ø
I
max
3.3 kW
-
-
2,5 mm²
11 A
2,5 mm²
11 A
5 kW
-
-
2,5 mm²
16 A
2,5 mm²
16 A
6.6 kW
2,5 mm²
19 A
2,5 mm²
11 A
2,5 mm²
11 A
10 kW
4 mm²
28 A
4 mm²
16 A
4 mm²
16 A
15 kW
4 mm²
28 A
4 mm²
28 A
4 mm²
28 A
The included connection plug can receive cable ends of up to 4 mm². The longer the connection cable, the higher
the voltage loss due to the cable resistance. Therefore the mains cables should be kept as short as possible.
Figure 7 - Example for a mains cable (not included in delivery)
