I had quite the lengthy disagreement with inspector today about a 200 amp feed through panel with 6 breaker spaces. I came off the bottom lugs with 4/0 SER (150 amp per 60 degree column) and went to a 150 amp main breaker panel. She tried saying that they were tap conductors. I said no way. There is no way the SER will ever see more than 150 amps cause it has a main breaker. Can someone else chime in on this please.