Wrenches, How do you apply NEC 690.64 (B) (2) when you have multiple single phase
inverters distributed across the 3 phases of an electric-panel via 2 pole breakers? Do you simply add up the total of all over-current devices feeding the panel (Inverter 2-pole breakers and main breaker) or is there a 3 phase formula that gets applied? It seems logical that if the single phase inverters are connected with 2-pole breakers Distributed across the 3 phases then you would take the sum of what is on each phase. Any and all input on this topic is appreciated. Regards, Al Aeonsolar 917 699 6641
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