Tabuchi Electric EneTelus EHW-S55P3B-PNUS Manuel D'installation page 22

Actual Connection
Tying the Inverter to the Grid using a Primary Feed
Storage Battery Unit
B B/W
22
Solar Panels
G
Remote Control Reverse Power
Panel Flow CT
Storage
Battery Unit
Solar Panels
Grid-tied Output Stand-alone Output
* This should be connected to the ground along with the breaker box.
Hybrid Solar Inverter
Storage Battery
Unit Signal
G G
Class D
Grounding