220V 15A Outlet In Garage - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 01-23-2012, 10:39 AM   #1
Member
 
Join Date: Jan 2012
Location: IL
Posts: 858
Rewards Points: 732
Default

220V 15A outlet in Garage


I have a 220V outlet in my garage that I use for a compressor and MIG welder. I wired it in with 2 pole 15A breaker and 14AWG wire in EMT.

My local store only sells the 220V 20A outlet which can accept the 15A and 20A 220V plugs (right side is horizontal slot, left side is T slot).

Is this a code violation to put a 20A outlet when it is only served by 15A circuit? I am thinking its not really a safety hazard because the breaker and branch wiring are sized for 15A.

Just wondering if I should bother changing it?

Advertisement

curiousB is offline   Reply With Quote
Old 01-23-2012, 10:44 AM   #2
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,774
Rewards Points: 664
Default

220V 15A outlet in Garage


Well for one thing 14 wire is to low a gauge for outlets in a garage anyway.
It would have been fine for the lighting.
Should have been 12-2.
How many amps do these tools use.
Even 12 would be very small for a larger compresser or a welder of any size.

Advertisement

joecaption is offline   Reply With Quote
Old 01-23-2012, 11:14 AM   #3
Member
 
Julius793's Avatar
 
Join Date: Dec 2011
Location: New york
Posts: 1,053
Rewards Points: 500
Default

220V 15A outlet in Garage


Quote:
Originally Posted by joecaption
Well for one thing 14 wire is to low a gauge for outlets in a garage anyway.
It would have been fine for the lighting.
Should have been 12-2.
How many amps do these tools use.
Even 12 would be very small for a larger compresser or a welder of any size.
Who the hell said garage needs to be 12 AWG?
__________________
Electricity will kill you if you give it a chance
Julius793 is offline   Reply With Quote
Old 01-23-2012, 11:20 AM   #4
Electrical Contractor
 
jbfan's Avatar
 
Join Date: Jun 2004
Location: Newnan GA
Posts: 5,964
Rewards Points: 2,324
Default

220V 15A outlet in Garage


Quote:
Originally Posted by Julius793 View Post
Who the hell said garage needs to be 12 AWG?
Joe did!
__________________
Yes I am a Pirate, 200 years too late. "Jimmy Buffett"
jbfan is offline   Reply With Quote
Old 01-23-2012, 11:26 AM   #5
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,774
Rewards Points: 664
Default

220V 15A outlet in Garage


Want it to pass inspection on my county it had better be 12-2. Been there and had to have the electrition redo it.
joecaption is offline   Reply With Quote
Old 01-23-2012, 12:05 PM   #6
Member
 
Join Date: Jan 2012
Location: IL
Posts: 858
Rewards Points: 732
Default

220V 15A outlet in Garage


Quote:
Originally Posted by joecaption View Post
Well for one thing 14 wire is to low a gauge for outlets in a garage anyway.
It would have been fine for the lighting.
Should have been 12-2.
How many amps do these tools use.
Even 12 would be very small for a larger compresser or a welder of any size.

Actually its is a 120V compressor @15A that was tripping the circuit on very cold days (only at startup). The motor has a jumper block to reconfigure for 220V and by doing so the current dropped in half and motor started up much quicker (lower IR losses in lines from panel). It has worked fabulously since going to 220V.

I don't know of any code restriction of mandating 12AWG on a 15A branch wherever it may be.

Anyway I was just asking about the legitimacy of using a 20A outlet on a 15A branch circuit. Is this a NEC code violation?
curiousB is offline   Reply With Quote
Old 01-23-2012, 12:16 PM   #7
Licensed electrician
 
Join Date: Sep 2007
Location: Maryland
Posts: 8,033
Rewards Points: 2,864
Default

220V 15A outlet in Garage


To answer the OPs question, you cannot put the 20 amp receptacle on the 15 amp wiring.

To Joe, Does your insector make up their own rules or is there a local amendment to the NEC? It is not in the NEC to require a 20 amp receptacle circuit for a garage.
__________________
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is offline   Reply With Quote
Old 01-23-2012, 12:27 PM   #8
Member
 
Julius793's Avatar
 
Join Date: Dec 2011
Location: New york
Posts: 1,053
Rewards Points: 500
Default

220V 15A outlet in Garage


Quote:
Originally Posted by Jim Port
To answer the OPs question, you cannot put the 20 amp receptacle on the 15 amp wiring.
Thanx Jim that's what I thought I just couldn't find it inside can you give me the article number?
__________________
Electricity will kill you if you give it a chance

Last edited by Julius793; 01-23-2012 at 03:28 PM.
Julius793 is offline   Reply With Quote
Old 01-23-2012, 12:44 PM   #9
Licensed electrician
 
Join Date: Sep 2007
Location: Maryland
Posts: 8,033
Rewards Points: 2,864
Default

220V 15A outlet in Garage


Try Table 210.21(B)(2).

But who is Joe?
__________________
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is offline   Reply With Quote
Old 01-23-2012, 03:28 PM   #10
Member
 
Julius793's Avatar
 
Join Date: Dec 2011
Location: New york
Posts: 1,053
Rewards Points: 500
Default

220V 15A outlet in Garage


Quote:
Originally Posted by Jim Port
Try Table 210.21(B)(2).

But who is Joe?
Sorry I meant Jim
__________________
Electricity will kill you if you give it a chance
Julius793 is offline   Reply With Quote
Old 01-23-2012, 03:32 PM   #11
retired elect/hvac/plumb
 
plummen's Avatar
 
Join Date: Jan 2010
Location: south east of omaha/The island of misfit contractors
Posts: 2,916
Rewards Points: 2,010
Default

220V 15A outlet in Garage


Quote:
Originally Posted by Julius793 View Post
Who the hell said garage needs to be 12 AWG?
Joe!
Although if I was going to the trouble to wire plugs in a garage I would use a 20a circuit,There I go agreeing with him even though its not a code requirement!
plummen is offline   Reply With Quote
Old 01-23-2012, 03:37 PM   #12
retired elect/hvac/plumb
 
plummen's Avatar
 
Join Date: Jan 2010
Location: south east of omaha/The island of misfit contractors
Posts: 2,916
Rewards Points: 2,010
Default

220V 15A outlet in Garage


If youre running a lot of stuff like compessors and welders in your garage have you thought about possibly just adding a sub panel in the garage to make it easier to upgrade your wiring out there as you add more big tools to your play area?
plummen is offline   Reply With Quote
Old 01-23-2012, 04:07 PM   #13
Member
 
Join Date: Jan 2012
Posts: 393
Rewards Points: 250
Default

220V 15A outlet in Garage


Quote:
Originally Posted by curiousB View Post
its is a 120V compressor @15A
15A circuits only require 14 gauge wiring unless there are significant voltage drop.

Last edited by jasin; 01-23-2012 at 04:37 PM.
jasin is offline   Reply With Quote
Old 01-23-2012, 04:16 PM   #14
Member
 
Join Date: Jan 2012
Posts: 393
Rewards Points: 250
Default

220V 15A outlet in Garage


I notice a lot of people on here still say 110 and 220 but that's incorrect. The nominal voltage in the USA is 125 and 250.

Last edited by jasin; 01-23-2012 at 04:34 PM.
jasin is offline   Reply With Quote
Old 01-23-2012, 04:18 PM   #15
Member
 
Julius793's Avatar
 
Join Date: Dec 2011
Location: New york
Posts: 1,053
Rewards Points: 500
Default

220V 15A outlet in Garage


Quote:
Originally Posted by jasin
I notice a lot of people on here still say 110 and 220 but that's incorrect. The nominal voltage in the USA is 120 and 240.
Yes and they will continue to do so

Advertisement

__________________
Electricity will kill you if you give it a chance
Julius793 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
European 220v Tools use with US 220v Outlet dominator Electrical 20 08-03-2012 12:21 AM
small secondary countertop outlet issue rasz Electrical 8 11-07-2011 05:14 PM
Odd voltages at outlet TJF Electrical 12 11-01-2011 10:13 PM
de-activate 220v electric stove outlet 6fthook Electrical 17 10-04-2011 07:32 PM
Garage Insulation yamster Insulation 0 07-01-2011 02:30 PM




Top of Page | View New Posts