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Old 08-20-2006, 11:40 AM
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Relay Help Needed

I need a switched source of power for my console gauges.

My thought is to use a relay that is switched via the IGN terminal of the fuse block. Key on...power at IGN terminal...relay switch closes...power to gauges.

Anyone see any problem(s)?

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Old 08-20-2006, 06:02 PM
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Doc here,

Nope..

Although, If it's just gauges you probably don't need a relay..unless it is some type of special application you are going for. Current ~ Wise your draw is probably less than 5 amps.


  • 85 to 12 volts FUSED (1 to 3 amp) Switched power.
  • 86 to Hard ground.
  • 30 to the gauge panel.
  • 87 to a Hot at all times source (Via a fuse rated for the gauge panel draw)
  • 87a is not used.

That should do ya..

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Old 08-20-2006, 09:07 PM
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Thanks, Doc.

You're probably right, but I thought I'd go from the relay to a junction block in the console and make all my connections from the gauges there. That way if I have to replace or change anything I only have to disconnect from the junction block and not doing any cutting/resoldering.
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