1. This connection is suit to 3-phase 3-wire high voltage system. For 3-phase 4-wire high voltage and 3-phase 4-wire low voltage system, please refer to the
ECM700 manual.The distinction of different modes is the channel of voltage and current,other wire connetting is same.
2. Power supply may be AC as well as DC.
3. ECM700 can be added the second RS485 port.
4. Those unmarked thermials are invalid.