I think you are complicating matters. One FCU, outgoing cable then supplies the hand dryer. If there is a hard wired cable on the hand dryer, then connect to that inside the hand dryer to make future maintenance simple.

If the radial only supplys one dryer, then you can set the breaker low enough that you do not need the FCU, though some sort of switch is a very good idea, often  high up near ceiling in buildings like pubs where interference is likely.

If you have a 20 or 32 A circut supplying a no of dryers then each one would normally have its own FCU,

Wire between dryer and first fixed item is flex. Joint may be Wago  or chock blocks.

No need for 2 Fuses.. At most the 2nd box near the unit  is used as a junction between flex and fixed wiring.

Mike

I am not trying to be rude but get somebody competent to do it.

Gary

One approach I have seen is to wire the dryer to a 13A plug and socket.  I guess that makes PAT testing the dryer a lot easier.

and worries folk who do not like plugs and sockets near places where folk have wet hands... I suppose you could have the plug and socket near the ceiling and a long flex running up the tiles in some stick on trunking, I'd consider that a bit of a hack, and my standards are not the highest.

Mike.

That was quite rude Gary! I'll give you that it was a bit of a scary question but if you don't ask you don't learn.

I shudder to think of the brainless enquiries I've made over the years.

As i said i don't want to sound rude but the OP sounds confused to say the least. Better to learn from someone that knows what they are doing. I  personally pick things up far easier when watching someone rather than being told although i appreciate we aren't all the same.

Gary

I'm not sure where the wagos(or choc blocks) fit in - typically a flex outlet FCU is used with the flex connected to the outgoing FCU terminals - the supply circuit then loops through the incoming terminals of each FCU.

I you wanted the FCU out of reach, then hard-wire to a flex outlet plate and take the flex from there - but they mostly come with their own terminals built-in too (perhaps cheaper ones don't so you might have to provide your own terminals then).

   - Andy.

And don’t forget the RCD! We had a young female student electrocuted in McDonalds Belfast several years ago due to a vandalised hand dryer. Following the incident McDonalds fitted RCDs to all their hand dryers through out the U.K.

Is it any different to having plugs and sockets in kitchens?