Hi Allen, I always use the max output current method, not the fuse rating downstream.
Good Luck On Sat, Oct 24, 2015 at 5:50 AM, Allen Frishman <[email protected]> wrote: > Wrencher's, > Quick question regarding sizing the fuse for a combined group of > inverters. If I have six 10KW three phase inverters each with a max AC > current of 30A they each require a 3 pole 40 A breaker. If I then take > the combined output of the AC combiner panel I see two possible options for > sizing the combined fuse size. > > 6 inverters x 40A breakers each = 240A so I need to use a 250A fuse > 6 Inverters x 30A max output each = 180A x 1.25 = 225A Fuse > > Seems like both are acceptable options since all wire will be protected. > > All feedback is appreciated. > > *Al Frishman* > AeonSolar > > *(917) 699-6641 <%28917%29%20699-6641> - cell* > *(888) 460-2867 <%28888%29%20460-2867>* > *www.aeonsolar.com <http://www.aeonsolar.com/>* > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates*
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