Also known as static converters, these transformers allow your motor to run at up to 70% of its normal power. Use them in drill presses, mills, and grinders. They generate three-phase output power from a single-phase input. When wired for constant voltage, transformers filter out voltage spikes and electrical noise.

Select a transformer so the power output of your largest motor falls within the output range. When using multiple motors, start the largest motor first, then start smaller motors individually.