International Wire Color Codes
Thermocouple and Extension Wire
| Country | USA | United Kingdom | Germany | Japan | France | |
|---|---|---|---|---|---|---|
| National Standard |
ANSI MC96.1 T/C |
ANSI MC96.1 Extension |
BS 1843 |
DIN 43714 |
JIS C1610-1981 |
NF C42-323 |
| J Overall | Brown | Black | Black | Blue | Yellow | Black |
| J Positive | + White | + White | + Yellow | + Red | + Red | + Yellow |
| J Negative | - Red | - Red | - Blue | - Blue | - White | - Black |
| K Overall | Brown | Yellow | Red | Green | Blue | Yellow |
| K Positive | + Yellow | + Yellow | + Brown | + Red | + Red | + Yellow |
| K Negative | - Red | - Red | - Blue | - Green | - White | - Purple |
| E Overall | Brown | Purple | Brown | Black | Purple | ------ |
| E Positive | + Purple | + Purple | + Brown | + Red | + Red | |
| E Negative | - Red | - Red | - Blue | - Black | - White | |
| T Overall | Brown | Blue | Blue | Brown | Brown | Blue |
| T Positive | + Blue | + Blue | + White | + Red | + Red | + Yellow |
| T Negative | - Red | - Red | - Blue | - Brown | - White | - Blue |
| R Overall | ------ | Black | Black | ------ | Yellow | ------ |
| R Positive | + White | + Yellow | + Red | |||
| R Negative | - Red | - Blue | - White | |||
| S Overall | ------ | Green | Green | White | Black | Green |
| S Positive | + Black | + White | + Red | + Red | + Yellow | |
| S Negative | - Red | - Blue | - White | - White | - Green | |
| B Overall | ------ | Gray | ------ | Gray | Gray | ------ |
| B Positive | + Gray | + Red | + Red | |||
| B Negative | - Red | - Gray | - White | |||
| N Overall | Brown | Orange | ------ | ------ | ------ | ------ |
| N Positive | + Orange | + Orange | ||||
| N Negative | - Red | - Red | ||||