On 25/03/2021 10:15, Adrian Caspersz wrote:
On 24/03/2021 22:17, Martin Brown wrote:
On 24/03/2021 19:04, Fredxx wrote:
On 24/03/2021 18:50, The Natural Philosopher wrote:
On 24/03/2021 18:07, Tim+ wrote:
Also, is that burnt out isolator switch suitable for a 7kW load
over 8 hrs
say (as might occur when car charging)?

I doubt it.

It doesn't look 30A capable - you need at least 25A for 7Kw

The one in the photo has Omega markings and looks like this:
Â*Â* https://rpp.uk.com/product/45a-double-pole-switches/

It has a 45A rating, and unless you can convince me otherwise it will
be continuously rated.

It looks like it failed first though and then cooked the distribution
panel. The damage to it is way too much for it to be an innocent
bystander. It was most likely the root cause and drew enough current
to damage other components but not quite enough to trigger a fast cutout.

One terminal is essentially completely burnt away. That is *really* hot!


Here is another fusebox, burnt in a similar place. (left image in this
frozen youtube clip).

https://www.youtube.com/watch?v=HMNmav9Gr7A&t=296s


3min55sec. He says its PME with no label. It's labelled PME on the
bottom left.



--
Adam