18
C
ROSS
S
ECTION OF THE
C
ABLES
We recommend the INPUT/OUTPUT and BATTERY cables be passed under the UPS.
To determine the minimum cross section of the input and output cables, see the table below:
Cross section of cables (mm2)
*
INPUT
mains /
separate bypass (optional)
OUTPUT
BATTERY
**
(optional)
kVA
PE
L1/L2/L3
N
PE
L1/L2/L3
N
PE
+/-
N
10
4
2.5
4
4
2.5
4
4
4
4
12
6
4
6
6
4
6
6
6
6
15
6
4
6
6
4
6
6
6
6
20
10
6
10
10
6
10
10
10
10
*
The cross sections indicated in the table refer to a maximum length of 10 metres
**
The maximum length of the cables for connecting the Battery Box (optional) is 3 metres
Note:
the maximum cross section of the cables that may be inserted in the terminal board is:
10mm2 for cables with lugs
16mm2 for bare cables
C
ONNECTIONS
The first wire to be connected is the protective earth wire, which is to be inserted in the terminal
marked PE. During operation the UPS must be connected to the earthing system
Connect the input and output cables to the terminal board as indicated in the figure below:
THE INPUT NEUTRAL MUST ALWAYS BE CONNECTED
DO NOT CONNECT THE OUTPUT NEUTRAL TO THE INPUT NEUTRAL
Note:
the connections to the BATTERY module must only be made if the Battery Box
(optional)
is present.
Summary of Contents for Sirius 20 kVA
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Page 31: ...29 DISPLAY MENUS...
