Thanks for the reply and the link Don,
It looks like there will be a lot of sub panels going in or maybe even more expensive panel change outs taking place until more of these cb’s are classified for use in older panels. I hope that some manufacturers will produce them ASAP.


My own Rant: mad
Personally, I miss the days when an “interchangeable” cb was anything functionally comparable.
I have never heard of an issue from using a Bryant cb in a Westinghouse panel or T&B in a Murray or Crouse Hinds panel, etc.
This classified rating is really a load of crap to anyone but a manufacturer, a listing organization or an insurance company.
Every one of the standard formerly “interchangeable” molded case cb’s I have ever seen has the exact same 120/240V voltage and 10,000A interrupting rating as a classified cb, and at about 1/3 less cost.
Okay, I feel better now. smile