It seems like the logical way to go would be to base it on the amp rating of your power supply rather than actual load, that way you shouldn't ever be exceeding no matter what you might add in the future, unless you mess with the power supply.
On Thu, Jan 29, 2015 at 9:59 AM, Bill Prince <[email protected]> wrote: > I talked/emailed with Forrest about this some time ago, but my memory is > fuzzy. > > I think what I recall is that each shunt can go over the rated amps by > some percentage, but I can't remember what that was.� I think it > something like 110% or 120% or somewhere in that neighborhood.� Don't > quote me on that. > > Most of our sites are less than 2 amps in total draw; maybe 100 watts or > less on a 48VDC system.� > > However, some of the battery chargers that we use can theoretically charge > at up to 15 amps or in that neighborhood.� So I would have serious > concerns about using a 10 amp shunt on something that could be running at > 15 amps. > > bp > <part15sbs{at}gmail{dot}com> > > > On 1/29/2015 6:21 AM, Paul McCall wrote: > > Guys, > > � > > Its been a few years since I looked at the shunts that we use.� So, I > have dumb questions on which of Forrest�s shunts to use � > > � > > If a tower typically draws 3 to 4 AMPs� we should use a 5 AMP shunt? > > � > > And, a tower that even sometimes draws over 5 AMPs, we should use a 10 AMP > shunt? > > � > > Paul McCall, Pres. > > PDMNet / Florida Broadband > > 658 Old Dixie Highway > > Vero Beach, FL 32962 > > 772-564-6800 office > > 772-473-0352 cell > > www.pdmnet.com > > [email protected] > > � > > >
