Thanks, earlydean!
It is a pair of 150-amp panels, but the computed load is less than 200-amps.
I hope to use 230.90(A) exception 3.
Also 240.4(B) seems to permit 250 kcmil copper, which has an ampacity of 255 amps @ 75 deg.C to be protected at the next standard size OCPD, which is 300 ammps.
Thoughts?
