Is this a subpanel?

[robertpitre]

I have a meter pan all in one type. Meter on top ,disconnect under it. Removing the short two wires and bring two 2/0 from meter, plus a neutral, Coming down from the meter pan thorough the house disconnect panel under the meter pan, to the generator switch located on side of disconnect , then from the generator switch, back to the disconnect house breaker in the disconnect panel ,dose the house disconnect panel becomes a (SUBPANEL)?. If so, I have to separate my grounds and neutrals? If not, than I would not have to?

Keep in mine this is a meter and disconnect all in one, and main breaker, plus feeder breakers. We installing a generator switch on the side of the disconnect panel.

 

[LarryFine]

The main problem with the method is that it violates the manufacturer's product certifications, unless they specify otherwise.

And yes, with the service main in the ATS, the panel becomes a sub-panel, a modification which most likely is not approved.