SOLAR DISCONNECT WIRING

[Nasty]

Hello

I just got a Midnite Solar MNDC125 disconnect and am wondering if the way I am going to wire it looks ok. No shunt and no DC-GFP. Small off grid system.
Also can I ground all components to the ground bus in the disconnect and to one ground rod? Or does the inverter and AC loads need a seperate ground?
Thanks for any advice.


[attachment deleted by admin]

[Robin]

The wiring diagram looks fine. One ground rod will suffice. Use separate clamps on the same rod, but if the AC and DC systems are separated by 25 feet or more, then use a separate ground rod. The NEC has a specific distance where you need to have a separate rod, but I do not remember the distance. Use good judgement. If you have to make a long wire run just to keep the one and only ground rod, then you are defeating the whole purpose of the ground rod. Lightning will take the path of least resistance. If you make it too hard for the lightning to get to earth ground, it may stray off the wire path and take a different route.

[laszlo]

Looks OK. The polarity of the Midnite DC breakers seems correct. You need to have equipment ground for the inverter.