It is an obligation to have a mechanical disconnect in the Netherlands and Belgium. Relays can be used for this purpose. External relays for the IQ series – 1PH are suited for single phase PV installations. These are mounted inside the PVBox or fuse box, on the PV side.
Attention: For the single phase version, the power grid is connected to the top, the PV installation on the bottom. This is the other way around for the three phase version.