Existing Sq.D SC816D200C series 2 CSED. 200A main service disconnect breaker.
What is the Busbar rating?
I am upgrading solar to a 7.5kW system and all solar (PV & battery) will require a 60A breaker. But NEC 705.12 BACKFEED ALLOWED implies I'm limited depending on bus bar rating.
If busbar is 200A looks like I have to derate main breaker to 175A.
Also I am a bit dumbfounded by the Schneider, everywhere I searched, the results indicated all breakers are limited to 70A max. But ... Found at Schneider.com, the product data sheet for this meter main. On page 4 the last two sentences say "A 100A Max. circuit breaker may be installed in the lowest position in the branch panel. All other positions are limited to 70A max. circuit breakers."
Anyone have confirmation of busbar and the 100A breaker?