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VARIAC hook up

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Posted on July 13, 2011 at 09:19:44
sailor321
Audiophile

Posts: 592
Location: maryland
Joined: August 26, 2004






I recently purchased this Variac at a flee market. Got it for $50 so its a good deal if it works
I would like some help in hooking it up. do not want to burn the house down
So it goes.........

 

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You also might want to make sure your outlets are wired up correctly., posted on July 19, 2012 at 17:54:36
orpheus
Audiophile

Posts: 1039
Location: NYC
Joined: February 27, 2002
If your outlets are wired up backwards, then your fuse will blow when you hook up the variac. The hot and neutral connections matter for the variac. I learned the hard way when I hooked up a variac without checking that my outlet was wired correctly.

-Aaron.

 

RE: VARIAC hook up, posted on July 17, 2011 at 17:26:24
Tre'
Industry Professional

Posts: 8902
Location: So. Cal.
Joined: February 9, 2002
2 is common
4 is in
3 is out

Unless you want the variac to go to 140vac.

For 140vac max output

2 in common
5 is in
3 is out

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

 

Not sure but..., posted on July 13, 2011 at 14:10:58
Lee of Omaha
Dealer

Posts: 961
Location: Omaha NE
Joined: September 8, 2006
Terminal 3 is almost certainly the wiper, so it will be one of the outputs. Suggest you use a signal generator or bell transformer (10 volt output) or the 6V or 5V winding of a power transformer you have laying around as a low voltage source and safely determine the relationships among the terminals.

And remember that a variac is NOT an isolation transformer--the output still has a DC path to ground.

 

RE: Not sure but..., posted on July 14, 2011 at 05:52:05
sailor321
Audiophile

Posts: 592
Location: maryland
Joined: August 26, 2004
thanks for the help
great suggestion to use low voltage source first
So it goes.........

 

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