Help with exhaust cutout switch

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  #1  
Old 05-08-15, 12:10 PM
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Exclamation Help with exhaust cutout switch

Hi everyone,

Have an issue with my exhaust cutout.
I will try and explain my crude paint wiring diagram as best I can.
Left: How my exhaust cutout was wired. Could open or close with a remote. Something in the control box malfunctioned, and it started melting (worked for almost a year)
Middle: (Control box gone) wires straight, will open the cut out
Right: (Control box gone) wires crossed, will close the cutout
Any one know how to wire this up to work again, maybe with a relay and a 3way switch? I obviously don't want to swap the wires every time I want to open and close.
I'm have a basic understanding of electricity, but I just can't seem to find the simple info on things like DPDT 3 way switches to wire it correctly. Thanks for any help everyone!
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  #2  
Old 05-08-15, 12:57 PM
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What you need is a DPDT toggle switch. This is a double pole, double throw switch. It allows for 2 different inputs and one output (the DP side) for each of two switches (thats the DT) - even though it looks like and toggles like a single switch. This means each side has two inputs and one output. You would cross wire it so the inputs are reversed when you toggle it.

Try doing a web search for "Wire a DPDT switch for reverse polarity" to see how it is wired. very straightforward.

- Peter
 
  #3  
Old 05-08-15, 03:41 PM
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You need to determine if the cutout requires constant power to stay open and constant power to stay closed.

You will need a DPDT center off switch if the cutout doesn't require continuous power.
OR
You will need a DPDT switch if cutout requires continuous power.

Either way.... you probably will need to use an ignition source for your power so it goes off with the key.

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  #4  
Old 05-08-15, 08:45 PM
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The cut out does not require constant power. Only about 1 second, and it opens, or closes.
I will look into what you all have posted here. I appreciate the help, think i need one with DPDT with center off switch
 
  #5  
Old 05-08-15, 08:50 PM
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You can also get a DPDT center off momentary contact. That means the switch stays in the middle and you tap it up or down.
 
  #6  
Old 05-08-15, 08:56 PM
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oh wow yeah, that sounds great! Where is a good resource to get these specific switches from?
 
  #7  
Old 05-08-15, 09:07 PM
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Amazon has a few choices. The one for $4 with the red on on plate would work fine. There are also rockers there you could use. The on/on plate doesn't have to be used.

Amazon DPDT switches

Detailed switch from Amazon

This is just one source. There are many.
 
  #8  
Old 05-08-15, 09:10 PM
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Most large electronic parts stores if you have one local. If not Newark Electronics, Allied Electronics, or DigiKey comes to mind. They all have searchable web sites.
 
  #9  
Old 05-08-15, 09:14 PM
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Thanks PJMax, I never thought about Amazon for electronic parts. Good call. That will help me too.
 
  #10  
Old 05-09-15, 04:22 PM
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Got the switch

Hey all I got the DPDT on/off/on momentary switch (RadioShack has them btw)

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It has numbers going counter-clockwise 1-6.

Can you draw me up another diagram?
I would like to use a 12V+ ignition power source, and a new ground.
As I mentioned before I need the up position to open the cutout, and the down position to close it. Thanks for any help everyone! I appreciate it.
 
  #11  
Old 05-09-15, 04:30 PM
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If the cutout works backwords....... reverse #2 and #5.

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  #12  
Old 05-09-15, 04:59 PM
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Thanks

Thats what I thought, glad for the clarification before moving forward. Thank you!
 
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