34
Parallel system installed by 15kVA UPS (conductor cross-section, unit: mm2)
UPS
number
Mode
Main input
Bypass input
Gr
ou
nd
w
ire
Output
Batte
ry w
ire
Bat
ter
y g
rou
nd
L w
ire
N w
ire
L w
ire
N w
ire
L w
ire
N w
ire
Grou
nd
2 UPS
3-3
16
16
10
10
16
10
10
10
25
25
3-1
16
16
50
50
50
50
50
50
25
25
1-1
95
95
50
50
95
50
50
50
25
25
3 UPS
3-3
35
35
16
16
35
16
16
16
50
50
3-1
35
35
95
95
95
95
95
95
50
50
1-1
185
185
95
95
185
95
95
95
50
50
Parallel system installed by 20kVA UPS (conductor cross-section, unit: mm2)
UPS
number
Mode
Main input
Bypass input
Gr
ou
nd
w
ire
Output
Batte
ry w
ire
Bat
ter
y Gr
ou
nd
L w
ire
N w
ire
L w
ire
N w
ire
L w
ire
N w
ire
Grou
nd
2 UPS
3-3
25
25
16
16
25
16
16
16
35
35
3-1
25
25
70
70
70
70
70
70
35
35
1-1
120
120
70
70
120
70
70
70
35
35
3 UPS
3-3
50
50
25
25
50
25
25
25
70
70
3-1
50
50
150
150
150
150
150
150
70
70
1-1
240
240
150
150
240
150
150
150
70
70
Note:
1.
Please select the larger cross-section conductor for the parallel system ‘AC IN cable’ in the single
source application.
2.
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.
