elmundogrande
Member
I was asked if you can use two 20a breakers in the 200 amp service instead of adding a sub-panel to combine both inverter outputs in to one feeder to the service with a 40a main and still use the 120% rule on the bus rating. This would be at opposite end of the main and the service has room for 2-2 pole breakers. My first taught was no that would go to 100% of the bus rating and looking at the nec 705 I can't find anything that says I have to do 100% so that leads me to say yes you can use the 120% of bus rating rule if on opposite end of the main breaker. What are your taught on this. Thank You :happyno::happyyes: