MFC1.. design
The following figure shows a connection over a wide surface area between the mounting plate and the device:

[1] | Conductive connection over a wide surface between the device and the mounting plate, in case the entire contact surface is conductive (e.g. unpainted). |
[2] | Second PE conductor via separate terminals (optional) |
[3] | PE conductor in the supply system cable |
[4] | EMC-compliant equipotential bonding, for example using a ground strap (HF litz wire). The contact surfaces must be conductive (free of paint). |