Modular UPS 25KVA~900KVA User Manual 25
Installation Instruction
3.6 Power Cables
3.6.1 Specifications
The UPS power cables are recommended in Table 3.2.
Table 3.2 Recommended sizes for power cables
Contents
150/25
180/30
250/25
300/30
500/25
600/30
Main Input
Cable
(mm²)
A 70 95 150 185 2*150
2*185
B 70 95 150 185 2*150
2*185
C 70 95 150 185 2*150
2*185
N 70 95 150 185 2*150
2*185
Output
Cable
(mm²)
A 70 70 120 150 2*120
2*150
B 70 70 120 150 2*120
2*150
C 70 70 120 150 2*120
2*150
N 70 70 120 150 2*120
2*150
Bypass Input
(Optional)
Cable
(mm²)
A 70 70 120 150 2*120
2*150
B 70 70 120 150 2*120
2*150
C 70 70 120 150 2*120
2*150
N 70 70 120 150 2*120
2*150
Battery
Cable
(mm²)
+ 95 95 185 240 2*185
2*240
- 95 95 185 240 2*185
2*240
N 95 95 185 240 2*185
2*240
PE
Cable
(mm²)
PE
70 70 95 95 120 120
Note
The recommended cable section for power cables are only for situations described below
：
z
Ambient temperature
：
+30
℃
.
z
AC loss less than 3%
，
DC loss less than 1%
，
The length of the AC power cables are no longer
than 50 m and the length of the DC power cables are no longer than 30 m.
z
Currents listed in the table are based on the 380V system (Line-to-line voltage) .For 400 V
system, the currents is 0.95 times and for the 415V system the current is 0.92 times.
z
The size of neutral lines should be 1.5~1.7 times the value listed above when the predominant
load is non-linear.
3.6.2 Specifications for Power Cables Terminal
Specifications for power cables connector are listed as Table 3.3.
Table 3.3 Requirements for power module terminal
Model
Terminal
Connection
Bolt
Bolt
Aperture
Torque
6-slot cabinet
Main Input
Cables crimped
OT terminal
M10 / 15Nm
Bypass Input
Cables crimped
OT terminal
M10 / 15Nm
Battery
Cables crimped
OT terminal
M10 / 15Nm
Output
Cables crimped
OT terminal
M10 / 15Nm
PE
Cables crimped
OT terminal
M10 / 15Nm
10-slot cabinet
Main Input
Cables crimped
OT terminal
M12 13mm 22Nm
Bypass Input
Cables crimped
OT terminal
M12 13mm 22Nm
Battery
Cables crimped
OT terminal
M12 13mm 22Nm
