Hi Drake, Could you please provide more information, array size, inverter make / model, conductor size, breaker rating, breaker brand?
Dick Solarwind Electric Bradford, VT --- You wrote: If I'm following this thread correctly, the relay is to break the flow of AC current to the battery based inverter (Outback) from a direct grid tie inverter when the grid is down and the batteries are full. The AC coupling here would be done at the protected loads panel, fed from the AC Out of the Outback. We are having problems breaking the AC from direct grid tie inverters feeding directly into the grid. When the relays open, the breakers that the inverters feed into, trip. They don't always trip, but trip randomly. The relays are open frame, similar to the ones you describe below. Why are we having this problem, as it seems that what we are doing is common practice? Thanks for your help. Drake --- end of quote --- _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & 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