Service disconnect question

[William E. Siegel]

Hard to see from the pictures, but the right side of the breaker on the bottom side appears to be burned. The left side is not.

Is this a concern? And what might have caused it?

[Bruce M. Graham, III]

Good catch Will, probably a loose connection.

[Marc D. Shunk]

I think what you're looking at there is the "arc chute" of that older style Cutler Hammer main breaker. It aparently either took a lightning hit once, or cleared a hard bolted type fault one or several times. As an electrician, if I saw that, I'd highly advise replacement of the breaker.

[Paul W. Abernathy]

Agreed with Shunk.......not worth second guessing it to the consumer. Defer and have it viewed by a licensed electrician.

as Shunk stated...it could be from a lightning surge, line surge or fault as well but better to be safe than sorry so I would want to look at it more closely personally so defering it to a like minded electrical contractor will serve the clients safety much better.