RICK NAPIER
Senior Member
- Location
- New Jersey
Does anybody remember the years they originally made breaker panels designed for duplex breakers without a keyed busbar?
I know it was in the around 1960, so I have no problem with that date range.... dates of 1955 to 1965 when the NEC began to require means to physically limit the number of breakers.
I wanted to find out the years prior to CTL panel markings that the duplex breakers were used. I found a good article on this site ,entitled Circuit Brekers: CTL Assemblies from 8/29/1999, that gave me the dates of 1955 to 1965 when the NEC began to require means to physically limit the number of breakers.
This is from SquareD
ecatalog.squared.com/pubs/Electrical Distribution/P
I don't think this is what is being asked.
I don't think this is what is being asked.
Me neither, I just fixed Greggs' link.