We have a customer who is feeding an 800 Amp 208/120 V panel with two 400 Amp fused disconnects. The switches are in the same panel, but separate buckets and each is feeding a set of 500 kcmil. This appears to be a violation of 240.8 because the fused disconnect switches are not factory assembled in parallel and listed as a unit. My question is, was this ever legal under an older code? Thanks for your time and for this service you provide.
Regards, Edward M. Barr, P.E.