Mike Dolt Enterprises
Mike Dolt Enterprises
User: dabatman, Location: NE Nebraska
Asked on: Wednesday, June 1, 2011 at 9:29 am EDT
Answered on: Tuesday, May 14, 2024 at 6:04 am EDT
Question: I have a situation that I'm trying to verify.Say I have 100A of non-continuous load and 12A of continuous load, then I end end up trying to size my feeder. This gives me 100A*100%+12*125%=115A for my feeder.Two things:1) Do I need a 100% rated breaker if I size my feeder at 125A? I believe I do, just trying to verify.2) Are fuses considered 100% rated OCPD?
1) Yes, you need a 100% rated breaker if you size your feeder at 125A. The breaker must be rated for the full capacity of the feeder, even if the feeder is not fully loaded.2) Yes, fuses are considered 100% rated OCPDs. They will open the circuit at 100% of their rated current. Flag for review