Well pumps and their power requirements are a highly complex issue: 2-wire, 3-wire, amperage, run time, soft start, head, horsepower,...
As a very rough starting point with no promises and possibly underestimating capability, a SUNRNR SUN240 is 60Hz and will run a 1hp water pump or 1.5hp compressor using the conversion equation above to estimate run time available.
The Continuous Usage Table may also be helpful here, showing it is possible to get ~1400W/day or ~2hrs run time of a 1hp pump.