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You are watching: Difference between 12/2 and 12/3 wire


I am removing a wall and have to re-route some wiring. My setup is to download a junction box and also re-route the wire together necessary. The question I have is what form of wire perform i require for an outlet. The existing cable is stamped 12/3? (from what I have the right to tell; difficult to read). I thought that 12-2 was what i would require for an outlet. Is this correct? go it do a difference if the outlet is in a collection of various other outlets?Thanks
XX-2 would have actually one hot conductor. XX-3 can have 2 hot conductors, a black and also a red.Typical usage for xx-3 is 3 means switching or when 2 circuits are run come the same ar in one cable and also can be break-up off in ~ a junction box.
Answers based on the National electrical Code. Local amendments might apply. Inspect with your local structure officials.
Thanks Jim! That"s what i thought..just don"t recognize why the cable would certainly be stamped 12/3?? there are only three wires (not sure of color..not at home).
another question...maybe ns am not knowledge this..would you use 12/3 if you are running a number of outlets in line?
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Thanks Jim! That"s what i thought..just don"t know why the cable would certainly be stamped 12/3?? over there are just three wires (not sure of color..not in ~ home).
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another question...maybe i am not knowledge this..would you use 12/3 if you room running a number of outlets in line?
You generally wire receptacles in a A to B to C come D pattern. You only require xx-2 cable uneven you need one more hot that is switched together with the continuous hot.

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Answers based on the National electrical Code. Local amendments may apply. Check with her local building officials.
another question...maybe ns am not understanding this..would you use 12/3 if you space running a variety of outlets in line?
you wouldn"t unless:1) the receptacle is semi managed ( height or bottom section controlled through a switch)2) you have two circuits in the very same area ( black color on one breaker, red on one more breaker and sharing a neutral) That way you only have to run one 3 wire cable rather of 2 2 wire cables.Edit: ns not certain if you"re in reality talking about receptacles or bright outlets..alot of ppl speak to recpetacles, "outlets"
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