Operation manual
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27
5.4.1
Recommended cross-sectional areas for power cables
When selecting, connecting, and routing power cables, follow local safety regulations and rules (Table 5-2).
UPS CABINET
CABLE DIMENSION
AC Input
(mm
2
)
AC Output
(mm
2
)
DC Input
(mm
2
)
Ground
(mm
2
)
10 kVA
4
4
10
4
15 kVA
6
6
16
6
20 kVA
8
8
20
8
30 kVA
12
12
35
8
40 kVA
16
16
35
10
Table 5-2 Cross-sectional areas for power cables
Power cable connection
Once the equipment has been finally positioned and secured, connect the power cables as described in the
following procedure.
Verify the UPS is totally isolated from its external power source and also all power isolators of the UPS are open.
Check to see if they are electrically isolated, and post any necessary warning signs to prevent their inadvertent
operation.
Open the UPS rear panel; Remove the cover of terminals for wiring easily.
WARNING
Protective earth cable: Connect each cabinet to the main ground system. For Grounding connection, follow the
shortest route possible.
WARNING
Failure to follow adequate earthing procedures may result in electromagnetic interference or in hazards
involving electric shock and fire
