PV Input leakage

[cybrslob]

My current inverter that I'm wanting to upgrade is a High Frequency Growatt which "leaks" backfeeds AC onto the PV input wires AC voltage referenced to ground of over 100 volts.  This is on both my units and as I understand not unusual for high frequency inverter/charge controllers.  Does this occur on the MN15 unit?  and I'm still not clear whether or not the MN15 AIO is a High Frequency or is it Transformer based?

[jahyde]

It is HF, otherwise you wouldn't see those great efficiency numbers on the spec sheet. However for an HF it still has huge surge ability compared to lower class products, but definitely not the 2x-3x surge found on LF inverters. I believe it was tested to ~25% over spec on a single leg, which most inverters will choke if you get that far imbalanced. You can find 2-3 YouTubes on that

https://www.youtube.com/shorts/wfGqI9SEtgE

https://www.youtube.com/watch?v=i5gAhT7vIPs