UPS5000-A-400 kVA
User Manual (50 kVA, PF=0.9)
3 Installation
Issue 03 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
54
3.1.6 Power Cables
The UPS can generate large leakage currents. A circuit breaker that provides leakage
current protection is not recommended.
If UPSs are connected in parallel, input and output power cables for each UPS should have
the same length and specifications.
Table 3-5
Recommended cross-sectional areas for power cables
Item
400 kVA
Mains input
connector
Mains input current (A)
675
Recommended cross-
sectional area (mm
2
)
L1
2 x (4 x 240)
L2
L3
N
PE
240
Bypass input
connector
Bypass input current (A)
608
Recommended cross-
sectional area (mm
2
)
L1
2 x (4 x 240)
L2
L3
N
PE
240
Output
connector
Output current (A)
608
Recommended cross-
sectional area (mm
2
)
U
2 x (4 x 240)
V
W
N (Increase the
cross-sectional
area at non-linear
load)
PE
240
Battery input
connector
Nominal discharge current (384 V current;
thirty-two 12 V batteries) (A)
1042
Maximum discharge current (end of
discharge current of thirty-two 12 V
1246