Wiring An Electric Fan

all your DIY needs
Post Reply
b110sss
Datsun Dreamer
Posts: 162
Joined: Tue Aug 19, 2008 12:47 pm

Wiring An Electric Fan

Post by b110sss »

Just finished front mounting a new 10" Davis Craig electric fan.
The kit came with a relay- is this necessary given that I am just wiring in a basic on/ off switch?
Also where would be the best place to grab a + wire to go through to the switch?
Cheers
Dave
datsunboy
Datsun God
Posts: 2016
Joined: Fri Jul 18, 2008 10:31 pm
aka: Dan
Location: Christchurch
Contact:

Post by datsunboy »

Standard switches aren't designed to run the switching current of fans or headlights etc hence the need for relays.
You've got the relay so wire it in.

Sent from my SM-G920I using Tapatalk
1969 SSS Nissan Bluebird coupe
1970 Datsun 1600 - CA18DET - Sold!
User avatar
85_Z31
Datsun Master
Posts: 1494
Joined: Sun Jul 18, 2010 10:53 pm
Location: Rangiora North Canterbury

Re: Wiring An Electric Fan

Post by 85_Z31 »

I trigger my fans from the Ignition on circuit , i borrowed a a signal wire from the ignition coil to get a +12v signal for the relay.
The Answer to your Question is NEEDS MORE VG30
Bartman
Committee Members
Posts: 7303
Joined: Sat Jul 19, 2008 9:04 am
Location: Datsun City
Location: Christchurch New Zealand!!!!
Contact:

Re: Wiring An Electric Fan

Post by Bartman »

I would recommend fitting a thermo switch to your radiator. Fit a relay, run 12v + to the trigger side from the coil, and run the - side of the relay trigger off the thermo switch.
They don't call me the man with the rubber arm for nothing you know.............
b110sss
Datsun Dreamer
Posts: 162
Joined: Tue Aug 19, 2008 12:47 pm

Re: Wiring An Electric Fan

Post by b110sss »

Thanks Guys.
Bart, I will in due course fit a thermo switch but in the meantime bearing in mind that we are talking about a race car I want to just run an on/off switch so I can manually control the fan.
With a switch in the dashboard where would be the easiest place to tap into to get a power feed- ignition switch?
Cheers
Dave
2 doors
Datsun God
Posts: 2499
Joined: Sat Jul 19, 2008 6:26 pm
Location: Christchurch

Re: Wiring An Electric Fan

Post by 2 doors »

Use the relay and take the trigger from the stereo,
User avatar
gman
Financial Member
Posts: 298
Joined: Sat Oct 06, 2012 4:57 pm
aka: gman
Location: christchurch
Contact:

Re: Wiring An Electric Fan

Post by gman »

2 doors wrote:Use the relay and take the trigger from the stereo,
Ha that's what my race cars are missing a stereo.
Post Reply