Energy Meter Chint DTSU666 3*220/380V 5 (80)A 4P is designed to precisely measure and monitor a solar power system like three-phase PowerWalker Solar Inverter SAN 6k / 10k. The RS485 communication protocol is complied with Modbus-RTU standard. Adopting the standard DIN35 mm din rail mounting and modular design, it is characterized with small volume, easy to install and easy networking.