Color coding required for 120/208V branch circuits?

[Isaiah]

If a panelboard is 3phase 4wire 208/120V does the branch circuit wiring from the 1P 20A CBs need to be a black red blue, for A,B,C phases?


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[infinity]

No.

 

[tom baker]

If there are no other voltage systems present, no
If,for example there was 480/277 and 120/208, then each system is identified by phase and voltage, no specified color except for neutral

 

[Isaiah]

If there are no other voltage systems present, no
If,for example there was 480/277 and 120/208, then each system is identified by phase and voltage, no specified color except for neutral

Right - but the individual branch circuits of each panel don’t need to be color coded correct?


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[tom baker]

Right - but the individual branch circuits of each panel don’t need to be color coded correct?


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No if no other electrical systems are present, which is what I think you are asking

 

[Dsg319]

Right - but the individual branch circuits of each panel don’t need to be color coded correct?


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No but I have seen it done. I suppose just trying to make it look good. Which it does.

 

[infinity]

Right - but the individual branch circuits of each panel don’t need to be color coded?

Correct. If you used all two wire MC cable you can just land the black ungrounded conductors on the circuit breakers.

 

[Isaiah]

No but I have seen it done. I suppose just trying to make it look good. Which it does.

We have a panelboard with all the branches using black, red, blue and of course white for the neutral. Even though it’s not a code requirement I think it reduces confusion especially in condulets and splice boxes.


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[jaggedben]

For branch circuits it's good practice and pretty standard in the industry. Black blue and red generally cost the same and save a lot of labor and troubleshooting time. But not a code requirement.

 

[electrofelon]

We have a panelboard with all the branches using black, red, blue and of course white for the neutral. Even though it’s not a code requirement I think it reduces confusion especially in condulets and splice boxes.


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Yeah for the most part color coding is to aid the installation process. I actually think it makes more sense to use the same color for all the ungrounded conductors in a full boat. So if you are pulling 3 full boats, blacks for one boat, reds for the second, blue for the third.

 

[Hv&Lv]

Right - but the individual branch circuits of each panel don’t need to be color coded correct?


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Do you have to color code the individual legs of a single phase service?
Same thing