Please settle an argument for me.
I've been told that MCBs eventually weaken if they keep tripping. Sounds like a load of guff to me but I'm in no position to argue the toss.
What's the definitive answer?
I've been told that MCBs eventually weaken if they keep tripping. Sounds like a load of guff to me but I'm in no position to argue the toss.
What's the definitive answer?