recepticle wiring help

[brett3xx]

Im wiring up the receptacle in my new shop and Im planning on using 10/2 wire with 15amp receptacles. Ill have 4 double gang boxes on one wall with a 40ft length and 1 double gang box on another wall with a 20 ft length. Will this amp receptacle and wire be suffient? What size breaker is needed, 20amp?

Ill be running chop saw, 18v cordless battery chargers, large fan, grinders, saw zall, radio, heatgun, and various other 15amp or less tools.

 

[CJ7VFR]

10 gauge wire is a bit overkill for what you want if you are planning on using a 20 amp breaker. Normally 12 gauge is used for that, and it a lot easier to work with.

Also, is all of the items you are talking about going to be on a single circuit?

Jim

 

[brett3xx]

10 gauge wire is a bit overkill for what you want if you are planning on using a 20 amp breaker. Normally 12 gauge is used for that, and it a lot easier to work with.

Also, is all of the items you are talking about going to be on a single circuit?

Jim

ok, thanks. maybe Ill just use 12/2 instead of 10/2? I was planning on putting each wall on a different circuit.

 

[CJ7VFR]

ok, thanks. maybe Ill just use 12/2 instead of 10/2? I was planning on putting each wall on a different circuit.

If your going to have multiple circuits, that is great, and 12 gauge wire with 20 amp breakers is the way to go.

Jim

 

[brett3xx]

If your going to have multiple circuits, that is great, and 12 gauge wire with 20 amp breakers is the way to go.

Jim

does it matter that ill be using 4 double gang boxes on one circuit and one double gang box on another circuit?

 

[saewoody]

does it matter that ill be using 4 double gang boxes on one circuit and one double gang box on another circuit?

Nope


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[brett3xx]

Can anyone post a wiring diagram for double gang boxes using 12/2 wire? Most of the diagrams I'm finding are for single gang

 

[wyliesdiesels]

#10 is overkill.

Dont have a wiring diagram but you would just wire the hot and neutral to the first outlet in the double gang then use short pig tails to jumper to the next putlet in the same box.

 

[pattenp]

Google "wire double gang outlet", using Images.

 

[Ray-CA]

I'd wire each outlet in the box to a different circuit and use a different color outlet (say red and white). That way, if you have to, you can plug two tools into the same box but be on different circuits.

Ray

 

[Paperman]

does it matter that ill be using 4 double gang boxes on one circuit and one double gang box on another circuit?

Yes and no. With the list of things you have you need to keep in mind what is running at the same time. If you are pulling a single 12/2 to your 4 double gang and are chaining them all together you could way over load it. Lets say you want a 1/3 HP shop fan, that's 7A, now add in the radio, chargers and other small loads. They will be fine until you pull the trigger in the chop saw or grab that 1000W heat gun. Break up the loads in different circuits and think about where you are going to use each item, try to feed each large devise with its own feed. Grinder, fan, chop saw, heat gun are all big users.

 

[arkieguide]

Be sure you use 12/2 - wg. #10 is over kill. 20 amps is fine on #12. The ground is very important on any circuit.Consider at least, and better ! 3 separate 120v - 20a - 1/p circuits for regular outlets. You will have to reconsider if you want a welder in the future. Good luck.

 

[CJ7VFR]

I'd wire each outlet in the box to a different circuit and use a different color outlet (say red and white). That way, if you have to, you can plug two tools into the same box but be on different circuits.

Ray

This is the way I would set it up if you're going to be running everything new and don't have any existing receptacles and switches yet.

To have separate circuits side by side is great. As mentioned you would be able to have more than one thing running at the same time, in the same location, and not overload a single circuit and keep tripping the breaker.

Also, having it set up this way would let you have the multiple items plugged into the same gang box, and be close to your work area, instead of having one plugged in here, and one plugged in across the room giving you less mobility to that item and not having to use an extension cord.

I also like the different color scheme. I personally would use black and gray receptacles and switches, but that is my color choice for a garage or shop. But any different colors would work, and would separate out the different circuits nicely!

Jim