1 Time-current charts give minimum and maximum curves, and a breaker's constant current trip point may have the minimum and maximum be significantly different (e.g. it might trip at only 10% ...

That led to the entertaining “Circuit Breaker Challenge” part of the video below, wherein we learn just what it really takes to pop the breaker on a 15-Amp branch circuit.

Short circuit current ratings should not be overlooked during panel design. Negative impacts can occur to production, equipment and, worst case, plant personnel.