● You can determine whether the MBUS is supported based on the nameplate on the
device.
● Inverters manufactured after July 20, 2022 do not support AC MBUS.
● The built-in MBUS module in the inverter does not need to be connected with cables.
● In utility-scale scenarios, an isolation transformer must be connected between the
inverter and loads.
● C&I scenarios are supported only in China.
Figure 5-23 MBUS communication (utility-scale scenario)
Figure 5-24 MBUS communication (C&I scenario in China)
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 5 Electrical Connections
Issue 18 (2024-03-10) Copyright © Huawei Technologies Co., Ltd. 59
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