● Because the output of the PV string connected to the SUN2000 cannot be
grounded, ensure that the PV module output is insulated to ground.
● The PV strings connecting to the same MPPT route should contain the same
number and model of PV modules or Smart PV optimizers.
● During the installation of PV strings and the SUN2000, the positive or negative
terminals of PV strings may be short-circuited to ground if power cables are not
properly installed or routed. An AC or DC short circuit may occur and damage
the device when the SUN2000 is operating. The caused device damage is not
covered under any warranty.
Terminal Description
Figure 5-12 Terminals
(1) Terminals of DC input 1 (2) Terminals of DC input 2
(3) Terminals of DC input 3 (4) Terminals of DC input 4
Procedure
Before inserting the positive and negative connectors into the positive and
negative DC input terminals of the SUN2000, check that the DC SWITCH is OFF.
SUN2000-(8KTL-20KTL)-M2
User Manual 5 Electrical Connections
Issue 11 (2023-02-07) Copyright © Huawei Technologies Co., Ltd. 49
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