It will definitely be less than 5 HP due to losses at higher
frequencies. Call the motor mfr to find out max safe speed. No need to
speculate or outguess them. Yu will know the answer on Monday.

i

On 2009-04-04, Karl Townsend wrote:
Kind of a follow up to my pump RPM question.

I found a 1200 RPM 5 hp motor and an old Hitachi SJ200 5hp. vfd in the spare
stockroom (er junkpile)

Any reason I can't spin this combo at 3600 RPM? Still have 5 horse?

Karl