On Mon, 10 Jul 2017 07:58:16 +0630, Lenny Jacobs
wrote:

When a breaker is tripped, it's always the main breaker, not the
individual breaker. Shouldn't the individual breaker be tripped first?

This is troublesome because I then have to turn off all individual
breakers with the main breaker on and flip each breaker to see which one
causes the trouble.
If you have a full panel - say even 21 breakers - all 15 amp, all
loaded to 80%, you have a 252 amp draw - no branch breakers are
overloaded, yet you are 25% overloaded on a 200 amp main breker.