Electrical Myth
While searching through the forums recently, I came across two posts in which an old electrical myth is repeated- "Circuit breakers will trip at 80% of their rating." For any breaker which has not deg...
Forum Discussion
I sure did read them. Perhaps you didn't? All the curves go vertical at the rated current.
It's just that the first curve's time is shortened before the curve goes "vertical". It's an incomplete curve because the author wanted to emphasize high-current and short duration breaker triggers. Don't let that fool you!
Sal
It's just that the first curve's time is shortened before the curve goes "vertical". It's an incomplete curve because the author wanted to emphasize high-current and short duration breaker triggers. Don't let that fool you!
Sal
RVUSA wrote:
then you didnt read it.
"You will notice that the curves are vertical exactly at the 100% mark"
Wrong, even the first graph shows that. Do some go vertical at 100% rated current, yes. Do ALL of them? No.
