Oscilloscope for testing 3-phase motor 480V AC?

I'm trying to find an oscilloscope that can handle We need a 4 channel for testing three phase motors 480 volts AC. The inputs have to be able to handle 600VACim trying to find an oscilloscope that can handle We need a 4 channel for testing three phase motors 480 volts AC. The inputs have to be able to handle 600VAC.

Check out the following which showcases the MSO5B, IMDA (Inverter Motor Drive Analysis) software package and probe recommendations:
https://www.tek.com/en/documents/primer/making-measurements-on-3-phase-motor-drives-with-an-oscilloscope

-Marc