Originally Posted by techntrek
Was this with one or both gensets running?
This was one genset running. What I was wanting to do was use the single 30A generator plug to 50A adapter, heavier connection plus only one adapter. Fired the single unit up, plugged her in, 120V at the outlets with 60hz. Sweet, I presumed that I had 13.3A instead of the 26.6, but who cares? I glanced at a diagram before I bought and the parallel jacks came straight off the leads going to the 15A outlets so I thought it would be ok.
And it did fine, running the TV, converter was happy, batteries got charged.
A few days later I go to run the microwave, the genset revved up, went straight to overload and shut down. I reset it, checked the connections, checked the voltage and found it fine. Fire up the microwave, straight to overload.
Thinking I had a bad generator or microwave I decided to try the 50-30-15 adapters on that unit before I condemned anything, at which point all was fine, started the microwave, the generator revved up less than before and the overload light didn't even blink. Turned the electric fireplace on low, started the microwave and the overload light again, didn't blink.
Now I think the control board actually knows the parallel jacks are plugged in, expects half the load to come from the other generator and it went into overload when it didn't happen. Not sure, but sounds logical.
So in short, with one generator feeding the parallel adapter you'll have good voltage but will come up shorter than the single generator amp rating.