Split phase or Single phase ?
My new SMA Inverter is back feeding 120vac back into the grid with two hot wires (120vac ea ). Calling it 2 single phase (or poles) could possibly mean that it could be connected to either one of the 2 hot buses. Since I believe the Idea was to distribute the heat equally between the two buses then breaker slots next to each other, was a no brainer way to do it. So if power was going in instead of coming out it would be a 120/240VAC split Phase, but this never happens.
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