Recommended cable minimum cross-sectional area
(unit: mm²)
UPS
power
rating
Output
Mode
Input
Output Battery
Main
input
Bypass
input
Ground wire
L wire
N wire
L wire
N wire
L wire
N wire
Ground wire
+/N/- wire
Ground wire
10000
VA
3-3 4 4 4 4 10
4 4 4 10
10
3-1 4 4 10
10
10
10
10
10
10
10
1-1 16
16
10
10
16
10
10
10
10
10
15000
VA
3-3 6 6 6 6 10
6 6 6 10
10
3-1 6 6 16
16
16
16
16
16
10
10
1-1 35
35
16
16
35
16
16
16
10
10
20000
VA
3-3 10
10
10
10
10
10
10
10
10
10
3-1 10
10
25
25
25
25
25
25
10
10
1-1 50
50
25
25
50
25
25
25
10
10
Note:
1. Please select the larger cross-section conductor for the UPS input cable in the
single source application.
2. UPS output cable length is recommended not to exceed 10m.
3. In the three-phase output mode, if the load is an unbalanced load, the L wire
of the bypass and output may exceed the rated current, and the maximum
rated current will be 1.732 times. The corresponding protection device and
wiring cable must be determined according to the standards of the region
and the actual situation of the user.
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