- Reaction score
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Just trying to clear something up for myself, hoping someone can put it into layman terms for me.
I'm looking at the time / characteristic curves in 7671. For example, 60890 Type B curve, p. 370.
Taking the example of a 32a breaker, the line flattens off vertically at 160amps. All understood ok there. But does this mean that a 32a breaker will trip anytime between 0.1 and (approx) 13 seconds, as these are the times in seconds that the verticalness of the line correlates to on the actual graph.
I am confused as the graph seems to show as I have explained above, whilst the quick reference box on the right of the page seems to suggest the trip times as 0.1 - 5 secs.
How should I be interpreting this information correctly here?
Any help and advice appreciated greatly as always.
Thanks again.
I'm looking at the time / characteristic curves in 7671. For example, 60890 Type B curve, p. 370.
Taking the example of a 32a breaker, the line flattens off vertically at 160amps. All understood ok there. But does this mean that a 32a breaker will trip anytime between 0.1 and (approx) 13 seconds, as these are the times in seconds that the verticalness of the line correlates to on the actual graph.
I am confused as the graph seems to show as I have explained above, whilst the quick reference box on the right of the page seems to suggest the trip times as 0.1 - 5 secs.
How should I be interpreting this information correctly here?
Any help and advice appreciated greatly as always.
Thanks again.