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Old 10-08-2010, 02:44 PM   #1
aussiecart
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Default Question on running wire from key switch to voltage reducer

I power up my digital voltmeter by running a wire from my key switch (when turned on), I would like to run another wire from the key switch to power up my 25amp voltage reducer and then go from the voltage reducer to a fuse block with negative bus. I want to do this so that when my key is turned off it will turn off all my accessories on the fuse block.

My question is would this be too much load for my key switch?

If it is ok to do what size wire should I use?

Thanks
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Old 10-08-2010, 04:01 PM   #2
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Default Re: Question on running wire from key switch to voltage reducer

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Originally Posted by aussiecart View Post
I power up my digital voltmeter by running a wire from my key switch (when turned on), I would like to run another wire from the key switch to power up my 25amp voltage reducer and then go from the voltage reducer to a fuse block with negative bus. I want to do this so that when my key is turned off it will turn off all my accessories on the fuse block.

My question is would this be too much load for my key switch?

If it is ok to do what size wire should I use?

Thanks
Aussie, I can not say for sure, but I believe Gorno was doing this as well, and it would work for a little while, but in the end the load was too much for the key switch, you might be better of using a separate rocker switch to control it.

LH
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Old 10-09-2010, 11:29 AM   #3
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Default Re: Question on running wire from key switch to voltage reducer

Actually, if you use a relay, you can easily use the keyswitch to activate the relay which would allow the power to flow through to the voltage reducer. I've installed hundreds of them and never had an issue with one yet. It creates virtually no load on the keyswitch but allows the operator to control power to the voltage reducer and other accessories with a single switch point.
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Old 10-09-2010, 09:30 PM   #4
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Default Re: Question on running wire from key switch to voltage reducer

Very Cool, thanks for the info Rabbit
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Old 10-09-2010, 09:47 PM   #5
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Default Re: Question on running wire from key switch to voltage reducer

Agreed. The secret is finding a 36v relay because that is the voltage across the keyswitch circuit.
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Old 10-11-2010, 08:46 PM   #6
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Default Re: Question on running wire from key switch to voltage reducer

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Agreed. The secret is finding a 36v relay because that is the voltage across the keyswitch circuit.
use the relay from a club car charger for this. I forget the part number, but they come in either 36 or 48 volts.
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Old 10-11-2010, 09:18 PM   #7
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Default Re: Question on running wire from key switch to voltage reducer

What power do you use to power the key switch?

I would assume not from the reducer............just jump off a single battery?

OT
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Old 10-11-2010, 09:41 PM   #8
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Default Re: Question on running wire from key switch to voltage reducer

first... please shrink your font.... that seriously hurt my eyes.....

Secondly, most keyswitches are already powered. The exception being on some Club Car models where they ran a ground through the keyswitch instead of a "hot" wire.
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Old 10-11-2010, 11:38 PM   #9
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Default Re: Question on running wire from key switch to voltage reducer

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Originally Posted by rabbitreborn View Post
first... please shrink your font.... that seriously hurt my eyes.....

Secondly, most keyswitches are already powered. The exception being on some Club Car models where they ran a ground through the keyswitch instead of a "hot" wire.
Wiring from scratch...........does the power to a stock key switch come from a single battery of the entire pack?

OT
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Old 10-12-2010, 09:19 AM   #10
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Default Re: Question on running wire from key switch to voltage reducer

Power to the keyswitch typically comes from the entire pack. The Keyswitch is actually a part of the Solenoid activation circuit.


Quote:
Txt solenoid activation
power starts on the white wire on the 36+ of the battery pack.
Power travels to the charger receptacle, goes through a reed switch inside the receptacle and comes out on the red 12 gauge red wire. ( check for power here, 1st!)
the red wire travels back through the loom to the forward and reverse switch where it attaches to a micro.
The other side of that micro has a blue wire attached that runs under the cart to the front and arrives at the keyswitch.
The keyswitch then transfers power to a green wire which returns to the area of the forward and reverse switch.
The power then goes through a 4 pin molex connector and travels to the "pedal box" (located under the floorboard of the car) where it goes through a micro and comes out on another red wire.
That red wire comes back up to the controller/f&r area where it once again goes through the 4 pin molex connector and continues on to the small post of the solenoid.
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