Hi,
I have installed the following components and need some help, please:
The system is running fine - as long as the AC-Out is not connected to the grid.
the grid is a typical german house-installation with 3 phases (L1 + L2 + L3 + N + Earth)
The AC-IN is connected to the grid (L1 - same phase as the AC-Out)
If our electrician tries to connect the AC-Out of the Multiplus to the grid (also L1), the RCD-Fuse and the circuit braker triggers. It doesn't matter if the Multiplus is ON or OFF.
Thanks!