it may well be 300A but its only DC brushed and it'll be for low voltage. I thought the prius was a 3 phase DC input ESC with a working voltage of 500 or so volts. I looked into it a while back and I specced up a 750V Lipo cell to go through a siemens ESC, that was about the size of a PC tower (bigger than the motor).

CJ

A huge 300 amp controller could be for a Ducted fan jet or 1/4 scale RC aircraft. There are brushed and brushless motors that draw lots of current for short periods. I built a electric 11.1 volt avatar heli and it drew 160 amps max full throttle and it only weighted 6 pounds.

does anyone know what setup i need in in EZ-build to use this controller?

I dont have ARC to look at right now but I think you can use a H-Bridge control. synthiam.com/Tutorials/Help.aspx?id=70

thanks will give that a try tomorrow. off to work now

This controller uses a modified movement panel, as it accepts a servo signal input for control.

synthiam.com/Tutorials/Hardware.aspx?id=28