Fan Interference ?

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=548
Printed Date: May 15, 2025 at 10:18 AM

Topic: Fan Interference ?

Posted By: bberman1
Subject: Fan Interference ?
Date Posted: April 30, 2002 at 7:37 PM

If I connect My remote turn on lead from my head unit to terminal #85, connect terminal #86 to ground, connect #87 to constant 12V+ (fused), then connect terminal #30 to My fans (6) and amps (3) will I get any interference from the fans on my amps? Or should I not have to worry about it.

Replies:

Posted By: NyxBass
Date Posted: May 01, 2002 at 11:35 AM

Most likely you won't have any problems whatsoever. If you try it and find that you do, just use one more relay, triggered off the remote lead, so the fans are a totally separate circuit. But I think you'll be fine with one relay.

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/NyxBass

Posted By: hot_shot_guy123
Date Posted: May 01, 2002 at 1:24 PM

You shouldn't have a problem, I'm running 4 amps and 4 fans and I'm having no problem.

hot_shot_guy123

Posted By: Big Dog
Date Posted: May 03, 2002 at 10:24 AM

Just remember to use BRUSHLESS fans like the ones used in computer power supplies otherwise the you would induce motor noise into the preamp section of your amp. (Who needs that!?!)

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Prepare your future. It wasn't the lack of stones that killed the stone age.

Posted By: bberman1
Date Posted: May 03, 2002 at 8:19 PM

They are brushless and I did buy them at a computer show.

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