True, as mentioned 160 is not a standard size, but you also cannot use a smaller size for a load side connection, unless you can use/find equipment rated for continuous duty...then you'd only need a 125A OCPD.
Typos courtesy of my iPhone. On Jun 17, 2013, at 1:33 PM, Pekka Laine <pe...@photonsolarpower.com> wrote: > Dear Fellow Wrenches, > > We have a small 50kW 120/208V commercial job with five 9kW 3PH inverters, > each outputting max. 25A. We are landing those into a dedicated load center > with five 40A breakers. Doing the math, 5 x 25A x 1.25 = 156.25A, we would > need a 160A breaker. This also equals to the maximum we can backfeed into a > 800A/800A Main Service on the load side according to the "120%" rule. > > The problem now is that we cannot locate any kind of 160A breaker or even a > 160A fuse for a AC disconnect. > > Has anybody ever done this without doing a "line-side tap?" It is hard to > believe that there wouldn't be an existing solution to landing maximum PV > into a 800A service. Are we missing something? > > Any good ideas or comments would be appreciated. > > Sincerely, > > Pekka Laine > > President > Photon Solar Power Inc. > www.PhotonSolarPower.com > Cell. 760-556-8170 > Toll Free 888-SUN-ACDC > CA Lic. #933648 > NABCEP Certified PV Installer # 032611-174 > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
