On 14/12/2020 22:46, Graham. wrote:


https://www.youtube.com/watch?v=buiJTq-w2fY


https://www.youtube.com/watch?v=I_VHEBGMHEI


Hmm. toasty.

Even more interesting is the link over to the right -

https://www.youtube.com/watch?v=YDGeyJnoqZQ

"AFDD's" aka 421.1.7

A brace of ARM core powered circuit boards inside an
MCB !!.

Does this mean plug-in mechanical timers will be unusable ?.
The one I use to turn the porch CFD light on/off doesn't seem to
sharply switch it off but there a second or buzz.