208Y 200a 3 phase panel boards

[spark master]

I know they now have 200a (or 225a) panel boards well above the 42 space limitation. I see 60/60; 60/80. What exactly are the new rules regarding max limits?


Did they remove limitations on the older panels, where people stuffed tandem breakers in 30/30 or 42/42 space panels ? Probably not due to the original UL rating.....

 

[infinity]

The 42 circuit limit is gone but you still need to follow the listing of the panelboard. Some residential 100 amp panels are limited to 20 circuits which cannot be legally exceeded.