My customer wants to install a tilting machine and it’s specs on line say 3 ph 460v. The building has 3 ph 120/208 v. Or should I call the mnfr to ask if it’s adaptable?
You've several electrician replies, mostly, IMO, good ones. Let an engineer step in here.
I'd say that probably 90% of smaller, say 50 HP and under, 460-3-60 motors are dual voltage motors, and thus 100% suitable for 230-3-60. Many, but not all, are suitable for 208-3-60.
Way over half of the machines will have a control transformer that will accept 230V.
If I were asked to specify equipment for this, the FIRST THING I would request is the machine tag info. After that, the recommendations here can be analyzed.
One issue if is is adaptable is that the starter/drive will likely need to be changed. The step up (208:480) transformer gets you around that issue and the potential 208 suitability of the motor.