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the12volt's install bay
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 Topic: electric fan, wiring check, on/off/on, therm
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howie ll
Joined: January 09, 2007
Location:
United Kingdom
Posts: 9,717 |
| Posted: January 24, 2012 at 12:08 AM - IP Logged |
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You won't need a "heavy duty" switch you're only switching relay coils max draw, 3 amps.
What's the on rush draw (switching on current draw) of each fan, add about 5 amps to each, that becomes your fuse and relay rating, either one fuse X twice that rating as per the diagram above or two feed lines and fuses, one for each relay, IMO safer.
P.S. From your questions here, I would suggest you follow that diagram slavishly.
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Amateurs assume, don't test and have problems; pros test first.
Read the installation manual, do a search here for your vehicle wiring. |
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superjatt
Joined: January 18, 2012
Location:
California,
United States
Posts: 10 |
| Posted: January 25, 2012 at 3:04 PM - IP Logged |
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. I had the fans wired up before with relays but I did not have an over ride switch to them.
Thank you so much for you input!
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Sc300 - 2jzgte |
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oldspark
Joined: November 03, 2008
Location:
Australia
Posts: 2,856 |
| Posted: January 25, 2012 at 8:54 PM - IP Logged |
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| The override switch should switch the relay(s), not the fan power. It just needs a few diodes (IN4004 etc) and a low-power switch. |
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