45A Cooker switch and 13A plug

[a_d_jones]

I think my simplest solution IS to use a CCU, hense my original question.

The reason I asked the question is because I don't fully understand what implications the 45A has.

As long as it's safe to use a CCU to switch the water feature on then I'm done. I can label the switch to ensure that it's obvious that it is not for a cooker.

 

[ban-all-sheds]

OK - what's wrong with this:

1) The plug-in transformer - plug it into a socket on the ring. If there isn't one in a convenient place, add one - not as a spur, but as part of the ring.

2) The SWA to the outside socket for the water feature -

2a) (You will have to do this come what may) - inside the garage, terminate the SWA in a metal adaptable box, and join it to 2.5mm T/E.

2b) On the ring, connect a switched RCD FCU. Connect the 2.5mm T/E from the metal box to it.

I've suggested an RCD FCU, even though the ring is already RCD protected, as it might give you discrimination - i.e. if you get a fault, it might trip before the house one does. Even if it doesn't, you'll be no worse off.

I really don't see what the attraction of a CCU is.....