Power in Flux
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Thread: 12 Volt power loss

              
   
   
  1. #11
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  2. #12
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    I have that here, I see it now. Can my key switch handle that power? Can you help me wire my contactor? All I can find is conflicting information.

  3. #13
    Empulse R #24 frodus's Avatar
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    Read the manual. I know for a fact that they tell you how to wire it. What "conflicting" info are ty referring to?

    72v on a 12v isn't going to be the end of the world but it reduces the life of the switch. Again, this is why we typically use 12v coils. Will it work? Yes. For how long? No one knows.
    Travis

  4. #14
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    I found two web sites using my contactor with a 12V sysstm
    http://www.instructables.com/id/How-.../step4/Wiring/
    Page 9 http://www.evamerica.com/curtisinstallationmanual.pdf

    But I still don't know how to wire it. And can I run 12V to the key switch of the controller?

  5. #15
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    You are the MAN! I see what I did wrong, when I ordered the contactor, I thought I was selecting the rating of the final connection 72V, but I was selecting the rating of the coil (I wanted 12V.)Sorry for being a rookie, I appreciate your help.

  6. #16
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    Let me know what you think of this set-up, I am going to bench test this first, and then put the shunt in just off the ED250 Switch.

    IMG_20120412_144753.jpg

  7. #17
    Ghost Rider Allen_okc's Avatar
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    im not sure what controller you are using, but maybe this will help...
    Attached Images Attached Images
    The Greatest thing about a EV, is the Song of the Terrain...

  8. #18
    Empulse R #24 frodus's Avatar
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    Put the pin 1 enable and the feed to the DC to DC converter on the load side of the contactor. Do not put that much load on that poor little keyswitch.
    Travis

  9. #19
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    That is the best digram I have seen yet. Would you say I should wire my contactor:

    IMG_20120412_112628.jpg

    spade 1- to key spot controller
    spade 2- 72V from ignition switch
    spade 3- Anode of diode
    spade 4- Cathode of diode

    Thanks for the help in advance

  10. #20
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    frodus, Got it good call

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