Which Wago

"The Max Aggregate Current (Iag ) is the sum of all the possible currents through the WAGOBOX® in normal use. This limit must not be exceeded. Usually the max Iag equals the number of phase connectors in the WAGOBOX® multiplied by the rating of the OPD* for the circuit."

If each box contains only one circuit / leg of the ring then you have 1 phase conductor so 1 x 32A so Iag is 32A which is within the total rating of the box. I view it as similar to the grouping factor for circuits run together which affects heat dissipation from cables.

The assumption in cable sizing at 2.5mm is that each leg of the ring will carry 20A max but in some circumstances (a very unbalanced ring, or a fault) each leg may be carrying up to the 32A, so you might want to consider using a 30A rated connector rather than a 20A, especially if it's inacessible.

Owain

You could leave the hidden socket where it is and have a 2.5mm spur to a new double socket, which I believe is allowed.

The awkward bit is routing three 2.5mm T&E cables into the existing socket which is fiddly, especially if the back box is only 16mm

Less awkward is removing the existing socket and using 3 x 3-way Wagos and a blanking plate.

Owain

The problem is that the existing socket is no longer accessible but the two junction boxes are. Looks like I will have to invest in some 773-173 Wagos for the 2.5mm2 L & N cores of the T&E, but will not be able to use them for the CPCs which at 1.5mm2 are outside the parameters of the 773-173 Wagos. The problem then is that I do not think there is enough room in the Wagobox to connect the CPCs with my 222 series Wagos so looks like I will need the 773-104 for the CPCs. Ohh well!

Richard

You could forgo wago, and crimp instead - that takes up less space generally.

Only problem is that by bypassing the hidden socket another socket on the ring will become a spur so I need to make 3-way connections in a Wago box.

Richard

I wondered about an Ashley J803. More expensive if you start off with some or all of the Wagos but AFAIK/CS is rated at 32A with no limitations.

sorry about spurious "-", the proper link is

No the hyphen isn't spurious, it's required, the problem being that some email clients remove trailing punctuation unless you surround the URL in angle brackets

You can make a three way connection with crimps (in a box or just in heatshrink)