1. This connection is suit to 3-phase 4-wire low voltage system. For 3-phase 4-wire or 3-phase 3-wire high 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 invali