Scenario Model of Y-
branch
Connector
(Part A)
Connection Description
Connecting
Y-branch
connectors
to the
SUN2000
Models
recommended
by Huawei
Part A can be directly connected to the
SUN2000, and part B is not needed.
Other models To ensure that the terminals of part A
match the DC terminals of the SUN2000,
part B is needed to connect part A to the
SUN2000. Use the DC terminals delivered
with the SUN2000 to connect part B to the
SUN2000.
Cable Specications
Cable Type Conductor Cross-
sectional Area (Unit:
mm
2
)
Cable Outer Diameter
(Unit: mm)
1500 V copper multi-
strand twisted PV cable
4–6 4.7–6.4
● Cables with high rigidity, such as armored cables, are not recommended,
because poor contact may be caused by the bending of cables.
● Do not connect aluminum or aluminum alloy DC power cables directly to the
DC terminals of the inverter.
● The 1500 V PV cables must comply with IEC 62930 or EN 50618.
Procedure
● Use the MC4 EVO2 PV connectors delivered with the inverter. If the PV
connectors are lost or damaged, purchase the connectors of the same model.
The device damage caused by incompatible PV connectors is beyond the
warranty scope.
● For models of the crimping tool and removal wrench, use the recommended
model or contact your Staubli dealer.
Step 1 Install the DC input power cable.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual 5 Electrical Connections
Issue 19 (2023-12-20) Copyright © Huawei Technologies Co., Ltd. 57
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