SUN2000-(5KTL, 6KTL)-M0
User Manual
5 Electrical Connections
Issue 03 (2019-07-19)
Copyright © Huawei Technologies Co., Ltd.
33
Figure 5-3
Connecting the PE cable
----End
5.3 Connecting the AC Output Power Cable
Precautions
A three-phase AC switch needs to be installed on the AC side of the SUN2000. To ensure that
the SUN2000 can safely disconnect itself from the power grid when an exception occurs,
select a proper overcurrent protection device in compliance with local power distribution
regulations.
Do not connect loads between the SUN2000 and the AC switch directly connected to it.
The SUN2000 is integrated with a comprehensive residual current monitoring unit. Once
detecting that the residual current exceeds the threshold, the SUN2000 immediately
disconnects itself from the power grid.
If the external AC switch can perform earth leakage protection, the rated leakage action
current should be greater than or equal to 100 mA.
If multiple SUN2000s connect to the general residual current device (RCD) through their
respective external AC switches, the rated leakage action current of the general RCD
should be greater than or equal to the number of SUN2000s multiplied by 100 mA.
A knife switch cannot be used as an AC switch.
Procedure
Step 1
Connect the AC output power cable to the AC connector.
