Click image for larger version. 

Name:	cabinet 2.PNG 
Views:	2421 
Size:	46.4 KB 
ID:	27555

Attempt number 2 - tried to separate Low/High voltage more and incorporate some other suggestions. Airflow intake at the bottom and out at the top, by VFD fan.
I checked the scale and believe its correct - cabinet is 700mm x 500mm . Although the DIN rail items are NOT to scale yet, the DIN rail is. I'll take some photos when parts physically arrive..
I think the conclusion is that fuses are v unlikely to be a negative addition, and probably positive, I'll add these between transformer output and Drivers AC input - probably 5/6A.
I did buy a PNOZ already as I made an ebay offer on one new much below "retail" price and got unexpectedly got accepted.

Andy - yes good shout on 24V PSU, just chose wrong one.
Think I'll need to add a fire extinguisher to the list too before I get started:)