Automotive Electrical Wiring Color Code

The color code legend was born from the process of identifying the simple within the complex.

Automotive electrical wiring color code.

Electrical wire color codes what each wire color means for you if you live in the united states and your home was built after the 1940s or your outdated wiring has since been updated you can expect the electrical wires behind your walls to follow certain color standards. The following iec dc wiring color codes are used for two wire grounded two wire ungrounded and three wire grounded dc power systems. These rules are applicable in the uk eu and all other countries who follow the new iec color codes instead of local and regional codes. The power source for color coding is the color code legend fig.

Brownpurple alternator regulator feed. In the old iec color code all the lines in three phase supply are either brown or black. Orn codes are usually printed with the entire color spelling for those with four or fewer letters such as blue or as an easily understood abbreviation such as blck. Sometimes an automotive wiring diagram is needed for something as simple as wiring in a car stereo or something as complicated as installing an engine wiring harness.

Us ac the us national electrical code only mandates white or grey for the neutral power conductor and bare copper green or green with yellow stripe for the protective ground in principle any other colors except these may be used for the power conductors. Black red and blue are used for 208 vac three phase. Brown orange and. They provide wire color information as a color code label in this case black white.

The old color code in uk until 2004 is shown below. Hence the new color code is introduced. Try it for yourself. The wire color codes used are only going to apply to the actual wires that are carrying the electricity.

3 also shown are common schematic illustrations of wires 4 wires connected and 5 wires crossed but not connected. The colors adopted as local practice are shown in table below. Before that it had its own code for electrical wiring. This symbol orn will let you know what color wire you should be seeking.

Iec most of europe ac power circuit wiring color codes. Uk started using the iec code from march 2014. This created a lot of problem. Automotive wiring diagrams and electrical symbols.

For consistency most electrical schematics have signal or energy flow from top to bottom. Labeling electrical wires conduits. The iec dc wiring color codes are adapted from iec ac wiring color codes. In many cases a bundle of these colored wires will be grouped together and sealed within a black or grey cable.

By the way color codes for electrical wiring are defined in din 47 002.