240v receptacle wiring question

[Barn Growin']

Hello everyone I was wondering if it is possible to connect two duplex 240v outlets together to run off of one 20a double pole breaker? I will not be running more than 20 amps through the 4 outlets I just want to connect 3 ballasts per breaker. I am using wire rated for atleast 30 amp.

 

[yamaha_1fan]

3,000 watts/240 = 12.5 amps
20amps *.8 safety margin = 16 amps

I think you are good to go. Hell you could connect 20 outlets, just no more than 16 continuous amps

 

[Barn Growin']

I understand that but I was just wondering if I could piggyback them together really. So i would have 2 duplex outlets per box for a total of 4 outlets.

 

[yamaha_1fan]

I am not sure on 240 outlets, but 120 outlets usually have 2 screws on each side. One for in, one for out. So you would connect your wire to one set of screws, then use a small length, and connect your next outlet to that extra set of screws. Just to be clear, one side is brass, the other is silver. You still need to connect your hot and neutral to a bras and silver. Cant remember which goes to what, but its usually marked. You DO NOT connect the hot and neutral to all silver or all brass. One wire has to go to each side.

There may be some areas that dont allow that type of connection, I am not sure. Or maybe its everywhere that frowns on it, not sure.

You could also just run the wire into the box, pigtail it, then run a short length to each outlet


If the 240 outlet doesnt have 2 sets of screws, you are wanting to double up on the connections? 2 wires per screw basically? I dont know about that. It would work, not sure if its safe. maybe, maybe not.

 

[TwistedRemedy]

dont do what this guy said unless you like fire and fried wires.....,

GO buy a homedepot diy wireing book for 10 bucks and save yourself the embarasment of telling to firemen that your internet freind told you how to rewire your medi grow......

 

[yamaha_1fan]

if its wrong, why dont you correct it? I have wired 120 outlets the way I described, still up and running

 

[jocat]

i have done this a couple ways, 1st way was using split bolts, running the main wire from breaker to an enclosed box, inside this box you will join the main and the two sets of wires that will run to your female plugs. this is were the split bolts come into play, think twist connector on steroids, you can find them at almost any hardware store but will be alot cheaper in town than at the local small town ace hardware, the wires can be pulled through the box allowing enough slack to do the stripping and tightening of the bolts, after i get them tight i tape the crap outta them. then feed them back into the box to keep them and me safe. 2nd option, get an intermatic timer that runs on 220 and run two sets of wires from the load terminals, one for each female plug. these are home depot items and have a wiring diagram inside the timer door, either one of these methods will give you two safe plugs. when your dealing with 110 remember that black wire goes to the gold terminal screw and the white to the silver, with 220 you can go hot to either terminal of the plug, just make them all the same, obviously if you could determine the way they are wired from the breaker box just follow that example. jc

 

[PharmaCan]

dont do what this guy said unless you like fire and fried wires.....,

GO buy a homedepot diy wireing book for 10 bucks and save yourself the embarasment of telling to firemen that your internet freind told you how to rewire your medi grow......

I'm just wondering, how are the wires going to fry? I didn't notice anything in Yamaha's post about bypassing the breakers.

Essentially what Yamaha said is true, except there are two hots instead of a hot and a neutral. You'll have two conductors (insulated wires) and a ground going into your box. Hook the ground to the box, if it is metal, then to the ground screws on the receptacles. Cut two black and two white pieces of wire, each about six inches long, wire-nut those to the corresponding incoming wires. Then hook one black and one white to each receptacle and you'll be good to go.

PC

 

[yamaha_1fan]

I'm just wondering, how are the wires going to fry? I didn't notice anything in Yamaha's post about bypassing the breakers.

Essentially what Yamaha said is true, except there are two hots instead of a hot and a neutral. You'll have two conductors (insulated wires) and a ground going into your box. Hook the ground to the box, if it is metal, then to the ground screws on the receptacles. Cut two black and two white pieces of wire, each about six inches long, wire-nut those to the corresponding incoming wires. Then hook one black and one white to each receptacle and you'll be good to go.

PC

Thanks PC, on my description I was referring to a 120 outlet just to describe how its done on 120. I was pretty sure there was nothing unsafe about it. Thanks for the confirmation


PC your method is called pig tailing isnt it?


Can you wire to one outlet, then wire off that to the next outlet?

 

[stoney419]

ok first off the easy way to rember on 110 yam is black on brass BB which is the hot white on silver nutrel as far as 240 white and black are both hot so you just hook them up just like yam said two wires comming in on two screws and two going out from the other two scwrews two the next outlet

 

[badugi]

TwistedRemedy: If you'd like to correct y1f and point out what's incorrect, please do so. If you don't have anything useful to add, just STFU.

 

[stoney419]

TwistedRemedy: If you'd like to correct y1f and point out what's incorrect, please do so. If you don't have anything useful to add, just STFU.

LMAO

 

[PharmaCan]

Thanks PC, on my description I was referring to a 120 outlet just to describe how its done on 120. I was pretty sure there was nothing unsafe about it. Thanks for the confirmation


PC your method is called pig tailing isnt it?


Can you wire to one outlet, then wire off that to the next outlet?

LOL - Did I ever tell you I have a linguistics degree? "Pig-tail" usually is not used as a verb, but it is the correct term and I suppose you can change it to a verb if you want.

You can go from one receptacle to another the way you described, but I prefer to use back-wired (little hole in back that you plug the wire into) receptacles and pig-tails because it's easier to get the receptacle plumb with the face of the box that way. Jumping from one to another they tend to get a little kattywhampus in the box and flexing one receptacle to get it straight can flex the other. But it makes no difference to the electricity which one you do.

PC

 

[TwistedRemedy]

"
If the 240 outlet doesnt have 2 sets of screws, you are wanting to double up on the connections? 2 wires per screw basically? I dont know about that. It would work, not sure if its safe. maybe, maybe not.

"
CLICK HERE
http://books.google.com/books?id=hk...a=X&oi=book_result&resnum=2&ct=result#PPA3,M1

240-volt circuits are just two 120-volt circuits tied together,but each of the 120 volts comes from a SEPERTE PHASE of a TRANSFORMER. but when yuo run two wires and hook up BREAKERS and RESEPTICLES , there isnt musch diffrence in the BASIC technique.

 

[PharmaCan]

"
CLICK HERE
http://books.google.com/books?id=hk...a=X&oi=book_result&resnum=2&ct=result#PPA3,M1

240-volt circuits are just two 120-volt circuits tied together,but each of the 120 volts comes from a SEPERTE PHASE of a TRANSFORMER. but when yuo run two wires and hook up BREAKERS and RESEPTICLES , there isnt musch diffrence in the BASIC technique.

Well hell, as long as we're passing out links, here's one for you:

CLICK HERE:

http://basic spelling.com

PC

 

[TwistedRemedy]

if its wrong, why dont you correct it? I have wired 120 outlets the way I described, still up and running

btw THIS IS A 240 VOLT THREAD SO YOU STFU with your confusing ass IVe done this shit dont mean crap with 240v bub so dont get this guy info unless you can vouch that you use it youself not 120 v ass holes. read the fucking thread first shit.

YES ,barn growin

YOU MAY TAKE A PRE EXSITING 240-V RESEPTICAL AND SLIT "PIGTAIL" YOU ANOTHER PLUG IN,

oN 240V, THERE ARE TWO HOTS- RED AND BLACK, EACH ARE 120 VOLTS. THEY GO FROM TWO SEPPERATE POLES ON THE BREAKER ON A DOUBLE POLE BREAKER FROM YOUR MAIN BREAKER BOX PANEL,.


INSIDE YOU TAKE THE TWO HOT 120-V LINES RED AND BLACK TO EACH SIDE OF YOUR 240V PLUGS AND THEN THE GREEN GOES TO THE BOTTEM SCREW ON THE BACK OF THE RESEPTICAL ITSELF, JUST LIKE YOU SAID AS LONG AS YOU PIGTAIL SAFLEY WITH WIRE NUTS AND TAPE AND NEVER GO OVER YOUR BREAKERS AMPERAGE YOU SHOULD BE FINE,

AND FOR ALL YOU CLOSET FUCKS GO READ A BOOK ,YOU BUG ME

 

[headfortrinity]

Well hell, as long as we're passing out links, here's one for you:

CLICK HERE:

http://basic spelling.com

PC

LOL

 

[TwistedRemedy]

LOL

say sumthin stupid agin push them buttons if it makes you feel better karma will give your yours trust that you dont bother me your just posting your own character flaws its a weakness you see maybe you are the ones who need help with your behavior , or might i say grow the fuck up kids , if it wasnt for us bringing you fucks boxes off the docks back then none of you would have been smokin trust that.

 

[yamaha_1fan]

Yeah I guess I should STFU, not like I know shit about wiring or electrical. 240? shit I thought he was talking about 420....

I am going to take my 10,000+ Watt closet grow and read a book.....

 

[Barn Growin']

Why do electrical questions always seem to get the most heated? What is it with that trade haha

My electrician buddy wired them all up together . I now have 2 duplex outlets for a total of 4 plug ins per 20amp circuit weeee. I will be updating my grow room build thread with new pics hopefully tonight!!

Thanks to everyone who tried helping!