Single Phase AC
BLACK or RED= Phase , Hot or Line, (L)
WHITE = Neutral (N)
GREEN = Earth Conductor “Protective earth” (PE)
Three Phase AC
BLACK = Phase 1 or Line, (L1)
RED= Phase 2 or Line 2, (L2)
WHITE = Phase 3 or Line 3, (L3)
WHITE = Common Neutral (N) (Used in Two Lines System Only)
GREEN = Earth Conductor “Protective earth” (PE)