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US AC power circuit wiring color codes

Started by branx86, July 03, 2017, 08:30:16 AM

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US AC power circuit wiring color codes.

Function   label   Color, common   Color, alternative
Protective ground   PG   bare, green, or green-yellow   green
Neutral                   N               white                           grey
Line, single phase   L   black or red (2nd hot)   
Line, 3-phase   L1   black   brown
Line, 3-phase   L2   red   orange
Line, 3-phase   L3   blue   yellow