Battle-Tested Diesel Generators and Parts Forums Military Generator Troubleshooting Purchasing motorized machines from Thailand and China to operate in the U.S. Reply To: Purchasing motorized machines from Thailand and China to operate in the U.S.

#3284
GMG
Keymaster

Check the voltage on the 3 phase 5HP machine. It is usually 208 volt, not 220v. The specs of the motor should clearly ID the following:
voltage (for 3 phase, 208v is most common, but sometimes it will show 208-240v as being an acceptable range.
frequency (our units are 60 Hz, so make sure the specs show 60Hz or 50-60Hz as being an acceptable range.

3 phase motors will last longer, can be reversed with a switch, and have less vibration, so 3 phase is a stronger motor.

Yes, having the utility install three phase power to a residence is typically cost prohibitive if available at all. Many places do not offer three phase power options.

A 15 HP motor would be around the limit for a MEP003A or a MEP803A military unit. Just ensure that the Hz, Voltage, and Phase all match.