[mactec54]

Like most of you guys, I have seen some of the tantalizingly cheap deals on awesome powerful and manly 380v industrial spindle motors and had to pass them up because there was no cost effective of powering them at home or in a small shop.

I bet I am not the only one who searched without joy or success for an affordable step up transformer to convert 220 to 380v or 460v. I only ever found devices that did the opposite this side of a $1,000.

I came across plenty of VFDs which converted 110v to 220v and allowed 1ph in with 3ph out and thought, why can't someone make one with 220v in and 380v out? The 380v devices use less amps so there was little difference anyway. But... there was nothing.... until today..... when I came across this:

https://www.ebay.com/itm/11KW-15HP-3...gcAAOSwdSRaF99

Could this be the answer? Can we finally starting digging in the grown-ups bargain bin?

There have been a few VFD Drives that you can do this with, this one you are looking at has a max output of 25amps, you input supply amps, will have to be much greater than this to be able to run it, just as 120v to 240v you need double the input amps to what ever the output motor size is, you have to also look at the Hz rating this has a max of 300Hz if that suits your spindles then you would be fine, that an expensive VFD Drive, most likely work out cost wise to use a 240v Drive and motor

If you live in NA the voltage is 120v / 240v for single phase