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?
Yeah, normally the coil isn't polarized, but these contactors have an economizer with some circuitry inside, so they need to be hooked up Black to com and red to +12V.
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.
MOV's (metal oxide varistor) are often used also for suppressing coil transients.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
DIY Electric Car Forums
539.9K posts
88.5K members
Since 2007
A forum community dedicated to DIY electric car owners and enthusiasts. Come join the discussion about electric vehicle conversions, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!