Your numbers are correct. I just double checked everything. It's been a long week..
Pump is on a double 20v breaker. Rated 230v 50hz. Input is 240v at 60hz.. well within operation specs..
Max amp draw is 16amps.. so under 4kw.
And yes, the damn genny runs a 240v 30 amp breaker... that's only 7200watts... and its rated for 8K/10ksurge.
I guess I could plug stuff directly into the genies 120v lines but that defeats the purpose.
I should blow a breaker if I have too much running and the pump kicks in.