What color is control wire?

What color is control wire?

AC and DC Control Circuits

AC Live or Neutral via transformer Red
AC Neutral (mains) Light Blue
DC+ – Blue
Earth Green and Yellow
Interlocks control circuits supplied from an external power source or remote panel Orange

What is the NEC IEC color code for 120 VAC control circuit wiring?

While the NEC does not contain a required color code for voltage marking, the industry standard is 208/120V (A) black, (B) red, (C) blue and grounded/neutral white; 480/277V (A) brown, (B) orange, (C) yellow and grounded/neutral gray.

Which color wire is L and N?

The N is for the neutral side or the white wire, and the L is for the load side, the black wire.

How do I identify a wire color?

The color code for AC power wiring is similar to the code used in the United States:

  1. Phase 1 – Red.
  2. Phase 2 – Black.
  3. Phase 3 – Blue.
  4. Neutral – White.
  5. Ground – Green with Yellow Stripe.

What color would be neutral in a 120 or 208 volt circuit?

AC Power (120/208/240 Volts) Phase 1 – Phase 1 wiring should be black. Phase 2 – Phase 2 wiring should be red. Phase 3 – Phase 3 wiring should be blue. Neutral – Neutral wiring should be white.

Is red wire N or L?

US recommended DC power circuit wiring color codes

Function label Color
Positive L+ no recommendation (red)
Negative L- no recommendation (black)
2-wire grounded DC Power System
Positive (of a negative grounded) circuit L+ red

What does U and V stand for in electricity?

Both of voltage description “U” and “V” are proper, however it must be mentioned that in European notation “U” describes voltage source while “V” describes rather voltage potential. It means that U = V1 – V1 (voltage is a difference between voltage potentials).

What colour is neutral on 3-phase?

Plug wiring colours

Wire Colour
Live Brown
Neutral Blue
Earth Yellow and Green

What are the electrical codes for wire colors?

IEC (most of Europe) AC power circuit wiring color codes. UK,AC: The United Kingdom now follows the IEC AC wiring color codes.

  • UK AC power circuit wiring color codes.
  • US AC power circuit wiring color codes.
  • Canada AC power circuit wiring color codes.
  • IEC DC power circuit wiring color codes.
  • US recommended DC power circuit wiring color codes.
  • What are the color codes for house wiring?

    – Black – use for line voltage or “hot” wire – Red – a second line voltage or “hot” wire – White – neutral – Bare – protective ground

    What are the colors of electrical wires?

    Earth wires (called ground wires in the U.S. and Canada): green with a yellow stripe

  • Neutral wires: blue
  • Single phase live wires: brown
  • 3-phase live wires: brown,black and gray
  • What color is house wiring?

    – Missing strain relief on armored cable – Extension cord wiring used to extend the circuit – Second circuit (below the armored cable) stripped back without connection to the electrical box at all – Electrical box too small for number of conductors – Electrical box inadequately secured to the building – No cover plate on the electrical box.