SolarEdge SE3680H - Selecting a Residual Current Device (RCD)

To connect the strings to the Connection Unit with MC4 connectors:
Connect the DC connectors of each string to the DC+ and DC- connectors according to
the labels on the Connection Unit.
Figure 16: Connection Unit with MC4 Connectors
Chapter 4: Connecting the AC and the Strings to the Connection Unit 33
EV Charging Single Phase Inverter Guide MAN-01-00583-1.5