RESOURCES AND CHARTS

Content

Thermocouple Wire Color Code

This entry was posted on November 04, 2022 by Vita Chernikhovska

In the United States, the thermocouple color code is regulated via ANSI MC96.1, issued in 1982. Canadian ANSI/ ASTM E230 standard offers identical color coding. Note that the thermocouple color coding standards in the rest of the world are different from the North American Standard.

In the USA and Canada, the jackets of all thermocouple wires are brown unless no color is established ( like for types S, R, B, and C). With extension-grade cables, there is more variety in the color of insulation. Note that the color of insulation in thermocouple-grade and extension-grade wires are not the same.

For more information, visit our thermocouple wire guide. If you are choosing between Type K and Type J, this post will help. For thermocouple grade and thermocouple extension cables, visit Nassau National Cable.

Back to Infographics

Author Bio

Vita Chernikhovska

is a dedicated content creator at Nassau National Cable, where she simplifies complex electrical concepts for a broad audience. With over a decade of experience in educational content and five years specializing in wire and cable, her work has been cited by authoritative sources, including the New York Times. Vita's popular series, such as 'What is the amp rating for a cable size' and 'How to wire different switches and appliances,' make technical information accessible. She also interviews industry professionals and contributes regularly to the wire and cable podcast.