Connecting Dc Input Power Cables - Huawei SUN2000-250KTL Series User Manual

SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual
Figure 5-13 Installation completed
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5.6 Connecting DC Input Power Cables

Precautions
● Before connecting DC input power cables, ensure that the DC voltage is within
● When the SUN2000 operates in grid-tied mode, do not perform maintenance
● For details about how to remove and insert DC input connectors, see
Ensure that the following conditions are met. Otherwise, the SUN2000 may be
damaged or even a fire may occur.
● The open-circuit voltage of each PV string must be lower than or equal to 1500
● The polarities of electric connections must be correct on the DC input side. The
Issue 07 (2023-06-30)
D ANGER
the safe range (lower than 60 V DC) and that the AUX. SWITCH and all DC
SWITCH of the SUN2000 are OFF. Otherwise, the high voltage may result in
electric shocks.
or operations on the DC input power cables, such as connecting or
disconnecting a PV string or a PV module in the PV string. Otherwise, electric
shocks or arcing (which may cause fire) may occur.
Power-Off for Maintenance.
WARNING
V DC under any circumstances.
positive and negative terminals of a PV string must be connected to
corresponding positive and negative DC input terminals of the SUN2000.
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5 Electrical Connections
8.3
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