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Are EV200 Contactor coil leads polarized

3K views 7 replies 4 participants last post by  DC Braveheart 
#1 ·
I have a Kilovac EV200HAANA contactor (well 2 actually). I know that the contacts are polarized to ensure that the magnetic blowouts work, but what about the coil leads?

The datasheet is silent on that (http://relays.tycoelectronics.com/datasheets/ev200.pdf). There is red lead and a black - I assume red goes to +12VDC and black to ground ... can anyone confirm or correct me?

Thanks
 
#4 ·
Just a side note of caution on the economizer in these contactors.

We have had a couple of cases where there is need of a capacitor or isolator on the 12 volt+ circuit. It seems there is a pulsed signal feedback generated in the econimizer that can interfere with other devices.

If you are getting weird performance of an electronic device on the same buss try a DC to DC isolator or a capacitor. We found it by disconnecting each device on the 12 volt circuit until the problem stopped.

Jim
 
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