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Rheostat hookup help

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Budzman

Registered
Joined
Feb 14, 2001
Can someone tell me how to properly hook up a rheostat up to a fan. Not too sure how to wire them up. Thx
 

AMDGuy

Member
Joined
Apr 10, 2001
Budzman (Jul 02, 2001 02:05 p.m.):
Can someone tell me how to properly hook up a rheostat up to a fan. Not too sure how to wire them up. Thx

Very easy. Cut the black wire going to the fan. Wire one side to the center pin on the rheo, wire the other side to either the left or right pin on the rheo. I believe if you wire to the right side pin when facing the back of the rheo it will keep it consistent with consumer electronics where clockwise = more RPMs.
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
If that is a fan with a tachometer output, you would be better off cutting the + wire instead of the return wire. The voltage running the fan and the tachometer share the return wire. You would not want to compromise the tachometer feature.

Hoot
 
OP
B

Budzman

Registered
Joined
Feb 14, 2001
its for a couple of high speed 120mm fans. Just wondering , can i hook up 2 fans to that one Rheostat?
 

Hoot

Inactive Moderator
Joined
Feb 13, 2001
Location
Twin Cities
That depends entirely on the rated wattage of the rheostat and the current the fans draw, or the fans wattage, from which you can deduce the current.

Hoot