Huawei SUN2000-50KTL-ZHM3 User Manual page 41

SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual
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Requirements for the OT or DT Terminal
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Issue 01 (2022-07-29)
If the external AC switch can perform earth leakage protection, the rated leakage action
current should be greater than or equal to 300 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 300 mA.
Use a socket wrench and extension rod to connect the AC power cable. The extension rod
must be longer than or equal to 100 mm.
Sufficient slack should be provided in the PE cable to ensure that the last cable bearing the
force is the PE cable when the AC output power cable bears pulling force due to force
majeure.
Do not install third-party devices in the AC connection box.
You need to prepare M8 OT terminals by yourself.
If the AC MBUS is used, multi-core cables are recommended, supporting a maximum
communication distance of 1000 m. To use other types of AC power cables, contact the
Company's technical support.
If a copper cable is used, use copper wiring terminals.
If a copper-clad aluminum cable is used, use copper wiring terminals.
If an aluminum alloy cable is used, use copper-aluminum transition wiring terminals, or
aluminum wiring terminals along with copper-aluminum transition spacers.
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
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