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4.1
Wiring for AC/DC cable
1.
Wiring length requirement:
When the distance between the load and the parallel UPS is less than 10 meters, the
length difference between the input/output lines between the UPSs in the parallel
system is less than 20%.
When the distance between the load and the parallel UPS is greater than 20 meters,
the length difference between the input/output lines between the UPSs in the
parallel system is less than 5%.
2.
Professional installation is required, please set the parallel system in the restricted area!
This chapter introduces how to wire AC IN/OUT cable to UPS in parallel system, and
UPS connecting with EBM/MBP.
4.1.1
Input /Output wiring specifications
Cable-select table for the parallel system AC IN, AC OUT and Battery wire:
Parallel system installed by 10kVA UPS {conductor cross-section, unit: mm2)
UPS
number
Mode
Main input
Bypass input
Grou
nd
w
ire
Output
Ba
tte
ry w
ire
Ba
tte
ry g
ro
un
d
L w
ire
N w
ire
L w
ire
N w
ire
L w
ire
N w
ire
Grou
nd
2 UPS
3-3
10
10
6
6
10
6
6
6
35
35
3-1
10
10
25
25
25
25
25
25
35
35
1-1
50
50
25
25
50
25
25
25
35
35
3 UPS
3-3
16
16
10
10
16
10
10
10
70
70
3-1
16
16
50
50
50
50
50
50
70
70
1-1
95
95
50
50
95
50
50
50
70
70
