UPS5000-A-400 kVA
User Manual (50 kVA, PF=0.9)
3 Installation
Issue 03 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
55
Item
400 kVA
batteries, namely, 1.67 V/cell discharge
current of 192 2 V cells) (A)
Recommended cross-
sectional area (mm
2
)
+
3 x 185
N
3 x 185
-
3 x 185
PE
185
When there is one mains input, configure input cables as mains input cables.
Additionally, cables listed in
are available only under the following conditions:
Routing mode: Routing the cables over the cable ladder or bracket in a single layer (the routing
mode for DC cables is F in IEC60364-5-52 and the routing mode for AC cables is E in IEC60364-5-
52).
Ambient temperature: 30°C
The drop amplitude of AC voltage is less than 3% and DC voltage less than 1%. The length of the
AC power cables of a 400 kVA or 500 kVA UPS is no longer than 30 m and DC power cables no
longer than 50 m.
90°C copper flexible cable
If external conditions such as cable layout or ambient temperatures change, perform verification in
accordance with the IEC-60364-5-52 or local regulations.
You must abide by the local rules and regulations when bridging and wiring AC cables.
The currents listed in
are measured at a rated voltage of 380 V; if the rated voltage is 400 V,
multiply the currents by 0.95; if the rated voltage is 415 V, multiply the currents by 0.92.
If primary loads are non-linear loads, increase the cross-sectional areas of neutral wires 1.5–1.7 times.
When you connect power cables, comply with the tightening torque listed in
ensure secure connections and prevent safety risks.
Table 3-6
Power cable connector requirements
Connector Connection Mode
Bolt
Type
Bolt Hole
Diameter
Torque
Mains input
connector
Crimped DT terminals
M16
18 mm
120 N•m
Bypass
input
connector
Crimped DT terminals
M16
18 mm
120 N•m
Battery
input
connector
Crimped DT terminals
M16
18 mm
120 N•m
