Connecting Dc Input Power Cables; Cable Connection Description - Huawei SUN2000-20KTL-M3 User Manual

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual
Figure 5-11 Wiring requirements
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5.5 Connecting DC Input Power Cables

● There are two models of PV connectors delivered with the device: Amphenol
Helios H4 and Staubli MC4. PV connectors of different models cannot be used
together. Device damage caused by mixed use of different PV connectors is not
covered by the warranty.
● Take waterproof and insulation measures for unused DC power cables to avoid
personal injury or property loss caused by accidental contact with high voltage
or other reasons.

5.5.1 Cable Connection Description

Precautions
● Before connecting the DC input power cables, ensure that the DC voltage is
within the safe range (lower than 60 V DC) and that the DC switch on the
inverter is OFF. Failing to do so may result in electric shocks.
● When the inverter is running, it is not allowed to work on the DC input power
cables, such as connecting or disconnecting a PV string or a PV module in a PV
string. Failing to do so may cause electric shocks.
● If no PV string connects to a DC input terminal of the inverter, do not remove
the watertight cap from the DC input terminals. Otherwise, the IP rating of the
inverter will be affected.
Issue 18 (2024-03-10)
CA UTION
D ANGER
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5 Electrical Connections
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