I came across this the other day:
A Challenger Loadcenter enclosure and cover.
It's been refitted with a Siemens Interior, which fits well, and has several different manufacturers' breakers in it.
It's quite the violation, but do you feel it's unsafe?
(the original Challenger neutral bar, on the far right, is still in use)
[This message has been edited by electure (edited 04-02-2006).]