My question is regarding article 690. I had an inspector fail a job that I installed because I did not use a backfeed circuit breaker. I used a 2 pole 30 amp circuit breaker located at the bottom of the panel and labeled. Has anyone ever heard of a backfeed circuit breaker before. If you read article 690.63.B.5 is states that there is no special requirements. Thank you 4 your time.