Needless to say a visitor decided to make use of these vacant premises. And why not!

But moving on...l cannot recall what l did to the electrics. So what Amp fuse should l put in here?

Here is the set up..
Ezternal EHU with battery charger.

Safety box...

Two cables leading out of external EHU with battery charger...

Grey right hand cable with blue and brown wires goes to fuse holder in second photo.
Regards
Stuart