How do i switch a 3 phase motor from low to high voltage?

Answer:
You can't. You must supply the motor with it's required voltage. If it's a dual voltage motor, follow the wiring schematic on the motor nameplate to switch from low to high voltage.
First answer by Jrhatcher. Last edit by Jrhatcher. Contributor trust: 61 [recommend contributor recommended]. Question popularity: 2 [recommend question].