Wire Insulation Color Code Page
Determine the application and select the correct catagory below.
This will take you to the correct color code chart for your application.
Select here for 120/240 VAC Power Wiring (and certain 4KV Power Wiring) Applications
Select here for 277/480 Power Wiring Applications
Select here for Stereo Audio Applications
Select here for AF (Audio Frequency) Transformer Applications
Select here for IF (Intermediate Frequency) Transformer Applications
Select here for Electronic Equipment Applications
Chart of Standard Wiring Colors For Electronic Equipment Applications.
|Wire Color ||Circuit Type |
| Black || Ground |
| Blue || Transistor Collector, FET Drain |
| Brown || Filaments |
| Gray || AC power leads |
| Green || Transistor Base, FET Gate |
| Orange || Screen Grid (Gate 2) |
| Red || B Plus DC Supply |
| Violet || Power Supply Minus |
| White || Minus of Bias Supply |
| Yellow || Transistor Emitter, FET Source |
#1. These values are for educational purposes only.
Due to the wide range of circuit applications, the author assumes no responsibility for the application of these values.
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