View Full Version : Wiring 220 to the garage
colindo94 09-16-2007, 03:41 AM The time has come to run 220 to the garage. Any Know how on this project?? I have never wired in the home before. Maybe a wiring diagram? The circut box is right behind the garage so that should be no problem. A list of things I need to buy would also be very helpful.
BrooklynBay 09-16-2007, 03:56 AM The main breaker is a double breaker, and has 2 hot lines connected to it. The box is neutral. A double breaker would connect to those 2 hot lines. The ground pin connects to the white neutral wire on the box which looks like a strip with a row of set screws. How many amps do you need, and how far away is the outlet? This would determine which gauge wire you will need, and the current rating of the double breaker.
rookieshooter 09-16-2007, 08:34 AM Go to Home Depot or Lowe's and get a DIY book on basic home wiring. Better yet in your situation get an electrician friend.
Do you already have a panel in the garage. Is it 100, 150 or better yet 200? if you already have a panel then you already have access to 220. It's just the way you wire it with what breaker. The 220 breaker that slips into the panel box has provisions for two 110 hotlines hence 220. Not counting neutral or ground. For example I have on occasions taken the 220 clothes dryer breaker and inserted the wires from a 220 welder. Might not be the safest thing to do, but did it anyway.
colindo94 09-16-2007, 01:45 PM The breaker is about 30 feet from the garage, but I can get under the house to run the wire so it won't be to tough. What kind of wire will I run? And can I pick up all this stuff at lowes?
colindo94 09-16-2007, 01:47 PM O and it will be for a welder so what are my amp options when doing this?
Turdle 09-16-2007, 03:13 PM I would use a 100 amp breaker in the main panel-
run 4/0 wire from it to another service panel in your garage.:thumbsup:
This can be a service panel--without a main breaker-since it will be protected by the breaker in the main box.
colindo94 09-17-2007, 02:37 AM I talked to my dad and did a little research and he said he would rather have an electrician come and do it. He say getting shocked by 220 is really dangerous. I will agree with him on that. Other then dieing it doesn't seem to be a hard task at all. I plan to run the wire under the house and plum the wall for the outlet and let an electrician do the breaker work. If I use 50amp breaker and its runnuing about 30-35 feet, what gauge wire should I go with?
BrooklynBay 09-17-2007, 10:03 AM According to this link: http://gearsmagazine.com/images/issues/2_2007/2007_1_REF.pdf you should use 10 gauge wire. This link is # 48 in my list of useful threads.
Turdle 09-17-2007, 10:14 AM I would use #10 for a 30 amp circuit-
#6 for a 50 amp.
According to this link: http://gearsmagazine.com/images/issues/2_2007/2007_1_REF.pdf you should use 10 gauge wire. This link is # 48 in my list of useful threads.
Those are 12v circuits--
BrooklynBay 09-17-2007, 11:46 AM Do you have a chart for 120 volt or 220 volt wiring?
Turdle 09-17-2007, 12:09 PM W=Wire Size
R=Rating (Amperage)
B=Breaker Size (Amps)
W --- R ---- B
#14 -15 A. -15 A.
#12 -20 A. -20 A.
#10 -30 A. -30 A.
#8 -45 A. -40 A.
#6 -65 A. -60 A.
#3 -105 A. -100 A.
This is just a general rule of thumb for 25' runs-
for a 35-50 foot run I would use the next size higher.
I am no electrician, But I did do most of my own wiring--After which a licensed electrician checked my work.
There is not a thing wrong with overkill in this area--IMO
colindo94 09-17-2007, 01:57 PM Alright sounds good. Just want to make sure I can't overdo anything.
So does a 50amp double pull breaker in the box, 6 guage wire, and the recipical(spelling) in the wall all sound good.
IZwack 09-17-2007, 02:57 PM 50 amp is kind of on the small side. It will work and you can try it first but if its blowing it more than you want, then switch to something a little higher. Of course switching breakers is simple as all you have to do is swap the two out so try it out first.
sn0border88 09-18-2007, 07:39 PM I would check out what the pull is for whatever welder your gonna run, and consider you might add an air compressor, plasma, whatever later on.
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