Hello,

Doing a main panel upgrade (200A) and move, along with moving service UG.

1960’s 100A Zinsco main panel. Single-phase residential.

existing main panel --> attic junction box --> new main panel

The purpose of the attic junction box is to provide an easy way to abandon the converted Zinsco when the house is rewired in the future. For any new circuits, the attic junction box will provide an easy path from the attic to the new panel.

I’m contemplating the best method of running the neutrals: (a) Running a couple of large neutrals; (b) running individual neutrals per circuit; (c) a combination of the two. Run is about 75’.

House has lots of X10 devices. Don’t know if there are any issues here, but can’t afford to have any problems.

The issue that comes to mind is GFCI breakers. Wouldn’t be able to use them unless individual neutrals were run.

Any thoughts?

Thanks.

Eric