Electrical Wiring Color Codes for AC & DC

IEC Wiring Color Codes for AC – UK , EU & Other Countries. As mentioned above, most of the Europe Union countries and UK, China, Russia, Hong Kong, Singapore, Ukraine, Belarus, Kazakhstan, Israel, Turkey, Argentina, South Africa, KSA (Saudi Arabia), UAE (United Arab Emirate) and Malaysia are following the IEC “International Electrotechnical Commission” wiring codes.

The power source for color-coding is the Color-Code Legend (Fig. 1 above). It is to wiring diagrams and circuits as what Ohm's law is to electricity and e = mc2 is to energy and matter. The Color-Code Legend was born from the process of identifying the simple within the complex. Try it for yourself.

Table of Contents. 1 What are Wiring Color Codes; 2 Wiring Color Codes in United States of America (USA). 2.1 USA Wiring Color Codes for AC Supply. 2.1.1 120/208/240 Volt AC Wiring Color Codes in USA; 2.1.2 277/480 Volt AC Wiring Color Codes in USA; 2.2 USA Wiring Color Codes for DC Supply; 3 Wiring Color Codes in Europe including UK (IEC). 3.1 Wiring Color Codes in Europe (IEC) for AC Supply

U.S. Wiring Color Codes. In the USA, color codes are usually utilized for power wires in “branch circuits,” the wiring between the last protective device like a circuit breaker and the load (like an appliance). AC Wire Colors For 120/208/240 Volts. These are commonly found in home and office settings.

Types of Wire Color Codes There are quite a few different wire color code standards in place, so it is important to understand which one to follow in which situation. The standards used will vary based on what country the wiring is being done in, and the type electricity it is for, and other factors.

In the old IEC color code, all the lines in three phase supply are either brown or black. This created a lot of problem. Hence, the new color code is introduced. UK started using the IEC code from March, 2014. Before that, it had its own code for electrical wiring. The old color code in UK (until 2004) is shown below. CEC Color Code for Canada

US DC power: The US National Electrical Code (for both AC and DC) mandates that the grounded neutral conductor of a power system be white or grey. The protective ground must be bare, green or green-yellow striped. Hot (active) wires may be any other colors except these. However, common practice (per local electrical inspectors) is for the first hot (live or active) wire to be black and the ...

Wiring color code diagram for Transducer Techniques Load Cells available online for download or viewing, come checkout other online services. Smart Load Cell Systems Buy Online or Call 800-344-3965

COLOR CODE All OMEGA® Thermocouple Wire, Probes and Connectors are available with either ANSI or IEC Color Codes. In this Handbook, model numbers in the To Order tables reflect the ANSI Color-Coded Product. Please see the previous pages for instructions on how to order IEC Color-Coded products.

But looking deeper, the color of the wires inside of the sheathing reveals that different colored wires serve different purposes. The National Electrical Code (NEC) says that white or gray must be used for neutral conductors and that bare copper or green wires must be used as ground wires. Beyond that are general, industry-accepted rules about wire color that indicate their purpose.