I am considering buying a used BP 1993 series II manual mill that in the ad lists it as being 480v 3 phase, but my building just has 208v 3 phase power. Do these BPs customarily come with transformers with taps so I can wire it to run off 208v 3p, or am I stuck having to buy a step up tranformer to create 480v 3p for it?

I checked and a suitable new step up Square D transformer costs $4k, but I see one on ebay for $275, so I guess I can go that way if need be. I see lots of step down transformers on ebay, for 480 to 208 3p. Can I use one of those if I hook it up backwards? I've done that with low voltage bf, but never with big 3p power, so I thought I should verify.

Thanks,

Doug Danielson
Atlanta



will BP series II manual mill run on 208 3p?

Typically the motors have the ability to be tapped for 220 or 460. The inside of the electrical cabinet should also have a transformer to adapt the control voltage to your 208.

George