One big omission, in the otherwise fine Soligent white paper, is that the 60A minimum disconnect has to be rated as "Service Equipment". Generally this means a "Heavy-Duty" safety switch or Service-rated load center with Main breaker.
I don't see why an AC breaker panel, with a Main breaker, couldn't act as the PV system disconnect, as long as it's Service-rated, a minimum of 60A, and the utility does not require an external-handle disconnect, lockable in the off position. Many utility companies still do. Brian Teitelbaum AEE Solar From: [email protected] [mailto:[email protected]] On Behalf Of Jason Szumlanski Sent: Wednesday, March 12, 2014 2:14 PM To: RE-wrenches Subject: Re: [RE-wrenches] AC Combiner with main breaker as system disconnect Don't utter the word tap. :) See: http://www.soligent.net/documents/HappyLandings_v3.pdf We usually specify a fusible disconnect for overcurrent protection when grouping the PV AC combiner with the main premises disconnect is not practical. Jason Szumlanski Fafco Solar On Wed, Mar 12, 2014 at 1:31 PM, <[email protected]<mailto:[email protected]>> wrote: I am trying to determine whether an AC combiner panel (for multiple inverter outputs) with main breaker can be also used as the PV system disconnect? This is for a line tap situation. I am accustomed to doing these systems with an AC combiner, and separate enclosure for a breaker style, line tap over current protection. Any thoughts/comments would be appreciated. Thanks, Kevin _______________________________________________ List sponsored by Home Power magazine List Address: [email protected]<mailto:[email protected]> 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<http://www.re-wrenches.org/etiquette.htm> Check out participant bios: www.members.re-wrenches.org<http://www.members.re-wrenches.org>
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