Post #4118744
2026-07-26 18:35 UTC
@wolf480pl@mstdn.io wondering will is break using test button is someone clever connected N with PE after then RCD?
Replies (1)
-
@wolf480pl@mstdn.io 2026-07-26 18:40
@FoxVK@mastodon.sandwich.net depends If PEN splits into PE and N before RCD, and then these two wires are connected again after RCD, then it should trip all the time. Like, you shouldn't be able to turn it on when there's any load at all, because ~half of the return current goes not-through-the-RCD. If "PE" after RCD is only connected to N after RCD, and not to PE before RCD, then the test button should trip the RCD, but a leakage to chassis won't trip the RCD, which is bad. I'm not a certified electrician btw. 1/