I have run into this many times and have never found a definitive answer. The disconnect spec typically says that it must be protected with an ocpd at or less than the disco rating, but we are dealing with a current limited device (inverter) in this case so it would seem legal to me.
On Wed, Aug 21, 2019, 5:22 PM Greg <[email protected]> wrote: > Fellow Wrenches, I'm having a discussion with a utility engineer > regarding the following situation: > > Installing a 6kW inverter that has a full rated output of 25 amps. 80% of > 30 is 24. That means to me I need to go up to a 40 amp breaker. I'm > running #8 (continuous load 25 x 1.25 etc.) > The engineer believes I should use a 60 amp disco since it's on a 40 amp > breaker. My thinking is I can use a 30 amp disco since it can not produce > more than 25 amps ever. > > Do any of you have a reference that shows what I'm doing is okay? Not > okay? > > Thanks again, > Greg Egan > Remote Power Inc. > _______________________________________________ > 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 > >
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