Old Wylex board convert to RCBO?

Mike Tomlinson explained on 17/07/2017 :

I seems to remember a Wylex DB, which was entirely encased in brown plastic, which had knock outs. It used the same front part of the case as the wood framed version, but had a rear plastic case, making it fully enclosed.

When I install kit that will "outlive me" I hope its because it will last a long time, not actively shorten my time!

En el artículo , John Rumm escribió:

Heh :-)

En el artículo , Harry Bloomfield escribió:

Yes, I've seen those too, albeit in beige. Presumably newer than the brown ones (mine is actually black, but hey.)

You could and should install a new box with a cutoff and RCD before where the elec goes into the old wooden box. And maybe add a new consumer unit for new circuits, and the high power ones (immersion heater?)

"like"

Which would mean that if it tripped whilst they were away for a few days, fridge and freezer would defrost. The modern way is to protect only those circuits which are not quite so critical.

In effect creating a "whole house RCD" installation, which is a now deprecated practice due to its many downsides.

If going to that much effort, just replace the whole CU with a modern one. Additional ones have a place when you need one extra way on a system that in most other respects is ok.