3 phase usb or serial controlled motor relay

[Growls]

Hi All, as the title suggests, I am having real trouble finding a 3 phase usb or serial controlled motor relay. It is for a conveyor that I want to turn on/off from a PC (via code)
Can anyone toss me a link to one i can purchase?
would be much appreciated.
Thanks
Craig

 

[kellys_eye]

Normal practise would be to switch the three-phase with a contactor - the controlling coil of which could be controlled by a USB relay such as this:

http://www.ebay.co.uk/itm/5V-USB-Re...192719&hash=item1a2e6ddd24:g:IvEAAOSwHLNZR0J6

 

[Growls]

thanks kel!

 

[Growls]

Do you have a link to a compatible contactor kel? Not sure what to look for.

 

[kellys_eye]

Contactors are pretty much 'universal' in that you have to know the kW (power consumption) of the motor you're controlling, coil voltage, number of poles etc before ordering (you can order 'bigger' than you need if you want).

Check out this link:

http://uk.farnell.com/w/c/automatio...cessories/contactors/prl/results?st=contactor

and click on all the search options (on the left of the screen) that you have details for to narrow down the results.