SUN2000-(30KTL-A, 33KTL, 40KTL)
User Manual
5 Electrical Connections
Issue 04 (2016-06-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
46
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5.3 Installing AC Output Power Cables
Prerequisites
An AC switch must be installed on the AC side of the SUN2000 to ensure that the SUN2000
can be safely disconnected from the power grid. See
10 Technical Specifications
to select AC
switches of the appropriate specifications.
Do not connect loads between the SUN2000 and the AC switch.
Context
To connect a ground cable to the ground point on the SUN2000-33KTL chassis shell, use
a four-core (L1, L2, L3, and N) outdoor copper-core cable. To connect a ground cable to
the ground point in the maintenance compartment, use a five-core (L1, L2, L3, N, and
PE) outdoor copper-core cable.
To connect a ground cable to the ground point on the SUN2000-30KTL-A or
SUN2000-40KTL chassis shell, use a three-core (L1, L2, and L3) outdoor copper-core
cable. To connect a ground cable to the ground point in the maintenance compartment,
use a four-core (L1, L2, L3, and PE) outdoor copper-core cable.
Outdoor copper-core cables are recommended.
Table 5-1
describes the specifications.
Table 5-1
AC output cable specifications
Inverter Model
Cross-sectional Area (mm
2
)
Cable Outer Diameter
(mm)
Range
Recommend
ed Value
Range
Recommen
ded Value
SUN2000-33KTL
16–25 (or 6–3
AWG)
16 (or 6
AWG)
24–32
28
SUN2000-30KTL-A/
SUN2000-40KTL
16–35 (or 6–2
AWG)
You need to prepare OT terminals by yourself: The OT terminal corresponding to the
SUN2000-33KTL AC output power cable is of M6 model and matches a cable with the
maximum cross-sectional area of 25 mm
2
. The OT terminal corresponding to the
SUN2000-30KTL-A and SUN2000-40KTL AC output power cables is of M8 model and
matches a cable with the maximum cross-sectional area of 35 mm
2
. The OT terminal
corresponding to the ground cable is of M6 model and matches a cable with the
maximum cross-sectional area of 25 mm
2
.