bpk
Senior Member
- Location
- Northern Minnesota
I have a small 20 space 100a panel that has a backfed 60amp being used as the main. On this install or lots of others like this, can you get a breaker with a slower trip curve so when there is a dead short downstream it doesnt take out the whole panel. I know there is a lot of info and calculations that go into selective coordination for large systems but I've never heard about small ones like this. This panel is a QO with a 2 pole 60 amp backfed being used as the main.