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#64209 - 04/02/06 07:49 PM Air Compressor and GFCI  
ed2903  Offline
Junior Member
Joined: Apr 2006
Posts: 3
I plan on installing a SEARS 1.5HP air compressor in my garage. THe unit is rated for 15 amps at 120V. My question is will the GFCI recepticle handle the duty cycle of the compressor? Or will there be a problem with nuisace trips? The unit is on wheels so it can be moved within the garage. Thanks.

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#64210 - 04/02/06 07:55 PM Re: Air Compressor and GFCI  
Tiger  Offline
Joined: May 2005
Posts: 706
Crystal Lake, IL USA
The easiest way to tell may be to plug it in & see if it nuisance trips.


#64211 - 04/02/06 07:57 PM Re: Air Compressor and GFCI  
renosteinke  Offline
Cat Servant
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
I wouldn't worry too much; retail tool suppliers often market stuf with wildly inflated "horsepower" ratings.

#64212 - 04/02/06 08:30 PM Re: Air Compressor and GFCI  
ed2903  Offline
Junior Member
Joined: Apr 2006
Posts: 3
Forgot to add that I want to run a dedicated circuit for the compressor.

#64213 - 04/02/06 11:10 PM Re: Air Compressor and GFCI  
gfretwell  Offline

Joined: Jul 2004
Posts: 9,099
I would put it on a dedicated 20 receptacle. It should run fine on a GFCI. If it rolls around you might have a hard time saying it was fixed in place for the exception.

Greg Fretwell

#64214 - 04/04/06 01:26 PM Re: Air Compressor and GFCI  
IanR  Offline
Joined: Dec 2004
Posts: 328
Palm Bay FL USA
I have the same type of setup in my garage. 1.5 HP compressor 15A@120V running through a GFCI. I have been running this setup for many years and have never had a problem with nuisance tripping. A dedicated 20A GFCI circuit will be just fine.

#64215 - 04/05/06 07:50 AM Re: Air Compressor and GFCI  
festus  Offline
Joined: Nov 2003
Posts: 40
fairfax Va USA
Seperate dedicated circuit, 20 amp, # 12 awg using a single recepticle would not have to be GFCI protected in the garage if installed for a freezer, just use this circuit for your compressor, or maybe get a twist lock plug and recepticle for your compressor so that other things won't be used on this unprotected circuit.
That's what I would do.

#64216 - 04/05/06 08:24 AM Re: Air Compressor and GFCI  
Larry Fine  Offline
Joined: Feb 2005
Posts: 693
Richmond, VA
Festus, the twist-lock plug and receptacle probably costs more than a GFCI receptacle does.

Larry Fine
Fine Electric Co.

#64217 - 04/05/06 08:37 AM Re: Air Compressor and GFCI  
mkoloj  Offline
Joined: Jan 2005
Posts: 135
Disclaimer: I am not an electrician.
However I do have a Sears 1.5HP compressor, on a dedicated 20 amp GFCI and use it all the time when working on my car.
Going on 4 years without having the compressor trip the GFCI yet.

#64218 - 04/05/06 11:06 AM Re: Air Compressor and GFCI  
IanR  Offline
Joined: Dec 2004
Posts: 328
Palm Bay FL USA
While I know that a GFCI would not be required if you ran a dedicated circuit, I would run one anyway. GFCI recepticals are not prohibitively expensive so, for the added safety, it's cheap insurance.
Just my 2p

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