Not sure what you mean by '2 OT feeders', but sounds like you've got a panel that is using a 3-pole 100a breaker that is back-fed. One question: Why do you want to remove it? There can't be too many more loads you need to put on it, considering it's 480/277.1. I'm working in a salon located in a mall. I have a 3P 100A Main breaker at the switch gear supplying the salon sub panel. The salon panel is a SUB panel with no factory hardware for a main breaker to be installed. However, the 2 OT feeders from the switch gear are connected to a 100 A breaker landed on the bus bars, acting as an additional means of disconnect for the sub panel. Can I eliminate the breaker in the sub panel?
Sounds like a loose connection in the subpanel, either breaker-to-busbar or wire-to-breaker. Or possibly a defective breaker.2. The salon service is 3P 277/480V and each phase amps out to approximately 36Amps. My A phase sub feed at the sub panel side is almost too hot to touch while the other two phases feel slightly warm. The 100 Amp sub panel breaker keeps tripping. The temperatures of the sub feed at the switch gear side are slightly warm. Why is my A phase sub feed HOT at the sub panel and fine at the load side of my main breaker at the switch gear?
Each phase will be rated to carry 100 amps.3. In this scenario, do I add up the total Load across each phase to determine total amps drawn? or is each phase rated at 100Amps?
Thanks a bunch....