All, thanks for the responses. I greatly appreciate it. Yes the 30 amp
disco is non-fusible and rated for full load. True, you have to check
the manu's specs. You _always_ should check the manufacturers specs.
Anyway, 705.22(4) indicates the disco:
/Have ratings sufficient for the maximum circuit current, //
//available short-circuit current, and voltage that is available //
//at the terminals/.
That rules out a 30 amp disco in this case.
Best,
Greg Egan
Remote Power Inc.
On 8/21/2019 3:20 PM, Greg wrote:
All, the engineer came back with 705.22(4) to back up his request. I
think that's the end of it. Per code he is right but since the
inverter is only capable of 25 amps, the only time the 30 amp disco
would see more than 30 amps is if the inverter was shorted. If that's
the case opening the 30 amp disco at that time could cause failure.
Pretty unlikely event.
Although I think installing a 60 on this circuit is an overabundance
of caution but I'll be installing a 60 amp disco on this one.
Best,
Greg Egan
Remote Power Inc.
_______________________________________________
List sponsored by Redwood Alliance
List Address: RE-wrenches@lists.re-wrenches.org
Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive:
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out or update participant bios:
www.members.re-wrenches.org
