460v 60Hz motor in 400v 50Hz power supply

Usually 1hp size European motors are universal for 50Hz or 60Hz power supply as long as you have 400V x 50Hz and 460V x 60Hz. This is because the voltage curve from 0V x 0Hz is pretty much the same as the power line going through 400 x 50Hz on the way to 460V x 60Hz, so the motor is still properly sane. On a 60Hz power supply it will usually be able to boost power, but you will need to look at the manufacturer's data and how many poles and who the manufacturer is to verify this.