This genset is 3KW. If you do the math, 20 amps at 240 volts is 4800 amps. I would like to set this up on a manual transfer switch to run my well pump, and maybe a couple 120v circuits to run freezers. I don't know the actual amp draw on the well pump, but it is connected to a 20A breaker. The 120 circuits are a secondary thing, mostly would like to run the pump. Is the math right and is this capable of running it? With all the various voltages and phases this is capable of, I really don't know where the 3KW is rated at.