What nr of poles to choose in AC motor 2,4 or 6?

[Marc1911]

Hi there,

I'm checking out minimum specs on the AC 3 phase motors to be used for 6DOF racing. I come across maybe an interesting configuration of a motor of the brand Marathon, type HJN series energy saving 3 phase asynchronous motor ->link
with a worm gear box reductor of 80:1 of the brand Transtecno type CM 030 -> [urlhttp://www.elektromotorshop.com/Content/files/cm%20doc.%20transtechno.pdf]link[/url]

The motor is available in 2 4 and 6 poles. Which should I use and why?

[tronicgr]

The motors in the link you provide, are for 400volts... that's why the various poles...

You should have a look on these motors as reference:
http://www.automationdirect.com/adc/Shopping/Catalog/Motors/AC_Motors_-_General_Purpose_and_Inverter_Duty_(0.25_-_300HP)/AC_Motors-General_Purpose,_Rolled_Steel,_IronHorse_(0.33_-_2HP)/3-Phase_Motors,_56C_(0.33_-_2HP)/MTR-P75-3BD18

I think usually they are 4 pole... for 3phase.

Thanks
Thanos