Number of Y-
branch
Connector
Sets
Recommended
MPPT to Be
Connected
Number of Y-
branch
Connector
Sets
Recommended
MPPT to Be
Connected
5 MPPT1, MPPT2,
MPPT3, MPPT4,
and MPPT5
6 MPPT1, MPPT2,
MPPT3, MPPT4,
MPPT5, and MPPT6
7 MPPT1, MPPT2,
MPPT3, MPPT4,
MPPT5, MPPT6,
and MPPT7
8 MPPT1, MPPT2,
MPPT3, MPPT4,
MPPT5, MPPT6,
MPPT7, and MPPT8
9 MPPT1, MPPT2,
MPPT3, MPPT4,
MPPT5, MPPT6,
MPPT7, MPPT8,
and MPPT9
N/A N/A
Figure 5-16 Y-branch Connector Solution
Scenario
Model of Y-
branch
Connector
(Part A)
Connection Description
Connecting
Y-branch
connectors
to the PV
strings
(recommen
ded)
All models Use the DC terminals delivered with the
SUN2000s to connect part B to the
SUN2000s.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual 5 Electrical Connections
Issue 19 (2023-12-20) Copyright © Huawei Technologies Co., Ltd. 56