Layout of panel containing 12V and 220V rails


I am designing a panel that will house as 220V rail and a 12V rail with an arduino controlling things via two 8 channel relay boards.

I am quite new at this… Is there anything dangerous or obviously wrong in the layout I have attached?

Thanks for the help!

No, but as they say, "the devil is in the details".

Thanks aarg. The idea is to make a sort of standard/generic panel that I can just copy and use in any other Arduino projects that requires input/output and different voltages. I'll post a pic here when I have completed it.

Missing in the layout are the two separate power supplies for the Arduino and the relay boards. Do you need 12V AC or DC for your application?