I think I agree on the Network rack front Paul, way too difficult to achieve any sort of legal compliance.
I guess I would add similar is true for Consumer unit enclosures. Most are tested or type tested for the individual brand and adding in Loxone (or any other manufacturers kit) invalidates that testing.
In the UK & Europe (and most of the commonwealth) undertaking building a panel, be it Loxone, KNX, Lutron, Rako or any other manufacturer is a legally regulated process that result in a new ‘product’ or ‘Assembly’’ and falls well outside the usual BS7671 Electrical regs.
You can see a good example of this from Future Automation, They build and Supply Lutron Lighting Panels and have indeed had them tested and certified - the same is not true for Loxone Panels, they will sell you an enclosure that is not certified and it is then up to you to go through the certification process of your completed assembly.
Notice they also refer to their enclosures as ‘Lighting’ enclosures, this is for very good reasons.
There is nothing wrong with building your own panel as long as you are aware of the legal requirements and insurance implications.
If you want to learn more look at BS EN 61439 for Lighting applications and / or BS EN 60204 for applications which include any mechanical services such as heating/Ventilation/blinds/Boilers etc.
Generally I would build in these or similar:
Martyn
As an electrician I would advise very strongly against using anything other than a proper DIN rail enclosure like those produced by consumer unit manufacturers like schneider, hager etc or the Loxone enclosures being manufactured by Future Automation.