The ET340 (for three-phase operation with max. 65 A) is an energy meter that is usually used in energy storage systems. The device can be connected via an RS485 connection.
SMA ENERGY METER 2.0
Universal power measurement for intelligent energy measurement. Also available for applications >63 A thanks to external current transformers. 3 phase, bidirectional measurement unit with SMA Speedwire interface to capture electrical measurements by each