Figure 3-6 Connect
ing charger L1 to the phase wire with the minimum load
● You are advised to install a fuse on the voltage input side of the meter.
●
Note*: A residual current circuit breaker with overcurrent protection (RCBO) needs to be
installed at the upstream of the charger. The recommended specications are as follows:
4P/40 A (50 A when the ambient temperature is greater than 45°C), Type A or B,
complying with local laws and regulations.
3.2 Single-Phase System
In the single-phase system wiring diagram, both FE and RS485 meters are
connected as an example.
PV+ESS+Charger Solution
User Manual 3 Solution Wiring
Issue 02 (2023-01-13) Copyright © Huawei Technologies Co., Ltd. 38
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