Power Surge Protection ?

[A/C Guy]

In most areas, I would think low voltage would be more of a concern than surges. In our area, we do more repairs to A/C's after brown out than after lightening storms. ICM makes a low cost voltage monitor that cuts the power if voltage drops below 96 on any leg or goes over 256 on any leg.

[performance]

Low voltage won't hurt things any more than high voltage will. Its the Hertz that makes a difference.

[A/C Guy]

Is that inherent because of the inverter design?
Is that an advantage over transformer based units?
Are inverters less prone to damage from low voltage compared to transformer based welders?

[performance]

I didn't say it wouldn't have any effect, just that it won't pose any MORE problems than over volatage. As I said we have an allowance of 10% over or under. Neither should have a problem. 208 appears to work fine on our units without any issues.