Point is - 100k people in the company worldwide and they don't recycle anything because of this. Its all crushed. So much for "living the tennets" and "upholding the company creedo"
@chrylis-cautiouslyoptimistic- most panels that aren't GE or Eaton CH can do this without a problem. (GE 150A branch breakers are nigh unobtanium, and CH 150A branch breakers simply ceased to exist a while ago)
@Shalvenay Do you mean that most panels that I might use as the new main can feed a 150A branch to the existing, new subpanel? The existing panel has a 150A main breaker; do I need an OCD on the upstream end as well, regardless of positioning?
In either case, I'm trying to find a small panel that can handle this, perhaps 12 spaces? (It looks like the 150A branch breakers take 4, and I would like to add a few more branches, but don't need "full panel" size, but I'm not sure how to find the correct panel, since the usual expectation is that the main panel is the big one and the subpanel is the small one.)
for economic reasons, it could be a full panel is not significant;y more expensive than a small panel. Figure in the cost of doing it again, and it may be worth jumping to full panels. Helps with resale value too.