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CONFUSED? DPST

Discussion in 'Technical Chat' started by smurf taco, Dec 30, 2012.

  1. Dec 30, 2012 at 9:38 PM
    #1
    smurf taco

    smurf taco [OP] Well-Known Member

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    im gonna do the bed light mod and i bought a switch for it and im used to switches with 3 prongs on it but the switch i bought has 4 prongs and ive never worked with them before. ive been doing some searching about them and its a double pole single throw switch. if someone can help me figure out which prong goes to the battery and which one gets grounded and which one goes to the lights and so forth. also does it mean i can have 2 switches do the same thing? such as a switch in the bed and a switch in the cab maybe? thanks for helping

    IMG_1408.jpg
     
  2. Dec 31, 2012 at 6:37 AM
    #2
    aw113sgte

    aw113sgte Well-Known Member

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    That is not a DPST unless it is a lighted switch. The switch should have a diagram on the side of came with a paper showing the connections.
     
  3. Dec 31, 2012 at 6:56 AM
    #3
    brian

    brian Another Traitor

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    Why does it look like everything on that switch is metal? If it is, I'd chuck it.

    A switch doesn't care what the polarity is, all it does is close a circuit. That being said, I could pretty confidently say that the bar down the middle is seperating the sides of the switch. Dual pole means two sets of contactors, so as long as you put a wire on one side and the other directly across from that same terminal, you'll be fine. If you wire it wrong, that just means whatever you are controlling will remain on without effect from the switch, OR you won't be able to turn it on, you wont hurt anything unless you touch a positive wire to the chassis.


    Also, aw113sgte, why do you say its not a DP? It has 2 sets of contactors.... only thing is it could be a DPDT, but I can't see the other side.
     
  4. Dec 31, 2012 at 7:23 AM
    #4
    Shadetree

    Shadetree Well-Known Member

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    I would verify with a continuity test.
     
  5. Dec 31, 2012 at 9:14 AM
    #5
    smurf taco

    smurf taco [OP] Well-Known Member

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    so i have to put one red wire (to the battery) and one red wire (to the lights) directly across from each other and then just ground a wire on a pole below one of the two?
     
  6. Dec 31, 2012 at 9:23 AM
    #6
    98tacoma27

    98tacoma27 :POOPCORN: Thor

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    That's a DPST switch. A DPDT switch would have six prongs. It doesn't matter which side goes to the battery but you should keep it uniform and have the battery on either the top two or bottom two poles.
     
  7. Dec 31, 2012 at 11:27 AM
    #7
    smurf taco

    smurf taco [OP] Well-Known Member

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    so i have to have 2 wires going to the battery? im so confused :frusty:
     
  8. Dec 31, 2012 at 11:33 AM
    #8
    maineah

    maineah Well-Known Member

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    It basically is two on off switches side by side. They are independent of each other.
     
  9. Dec 31, 2012 at 1:06 PM
    #9
    caribe makaira

    caribe makaira Lurker No More

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    [​IMG]

    A few combos you may use...
     
  10. Dec 31, 2012 at 1:10 PM
    #10
    98tacoma27

    98tacoma27 :POOPCORN: Thor

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    Can't be explained any better than this. VVVV
    +1
     
  11. Dec 31, 2012 at 2:30 PM
    #11
    smurf taco

    smurf taco [OP] Well-Known Member

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    thanks so much that helps a lot
     
  12. Dec 31, 2012 at 4:10 PM
    #12
    smurf taco

    smurf taco [OP] Well-Known Member

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    well i wired exactly how it is on the first diagram and it wont turn on....idk where i went wrong
     
  13. Dec 31, 2012 at 5:02 PM
    #13
    caribe makaira

    caribe makaira Lurker No More

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    If you are wiring LED's then verify polarity. But use a commun bulb to ensure power is travelling from switch.
     
  14. Dec 31, 2012 at 5:42 PM
    #14
    brian

    brian Another Traitor

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    Think of electricity as nothing more than plumbing. Its quite simple :)
     
  15. Dec 31, 2012 at 9:32 PM
    #15
    smurf taco

    smurf taco [OP] Well-Known Member

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    yea im not using LEDS. im gonna run through everything and make sure my grounds are good. thanks for the help guys im sure ill figure this out sooner or later lol
     
  16. Dec 31, 2012 at 10:40 PM
    #16
    smurf taco

    smurf taco [OP] Well-Known Member

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    since im the kind of person who doesnt sleep until the jobs done i finally got it all figured out and it looks awesome! thanks for everything guys really appreciate it :)
     
  17. Jan 1, 2013 at 12:15 AM
    #17
    caribe makaira

    caribe makaira Lurker No More

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    :confused:What was it?:confused: No pics of finished job?....:smack:
     
  18. Jan 1, 2013 at 5:19 AM
    #18
    Shadetree

    Shadetree Well-Known Member

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    Ben, good diagram to explain the possible combinations of a DPST switch. Thanks for posting it.
     
  19. Jan 1, 2013 at 11:02 AM
    #19
    smurf taco

    smurf taco [OP] Well-Known Member

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    it was simple. my ground from the lights came loose :facepalm: ill put pics on tonight when its dark
     
  20. Jan 1, 2013 at 2:06 PM
    #20
    caribe makaira

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    MMM..look one post up from Ben's....:rolleyes:
     
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