Tempco Custom Heater Manufacturing

Thermocouple Wire Color Code & Specifications

For United States, Canada & Mexico

Thermocouple Wire ANSI Codes, Color Codes and Specifications
ANSI Code Color Code Positive
(+) Lead
Negative
(-) Lead
Temperature
Range
Initial Calibration Tolerances
Standard
°C (whichever is greater)
Special
°C (whichever is greater)
J Type J Iron Constantan
(45% Nickel,
55% Copper) 
32-1382°F (0-750°C) ±2.2°C or ±0.75%  ±1.1°C or ±0.4%
K Type K Chromel®
(90% Nickel,
10% Chromium)
Alumel
(95% Nickel,
2% Aluminum,
2% Manganese,
1% Silicon)
32-2282°F (0-1250°C) ±2.2°C or ±0.75% ±1.1°C or ±0.4%
E Type E Chromel®
(90% Nickel,
10% Chromium)
Constantan
(45% Nickel,
55% Copper)
32-1652°F (0-900°C) ±1.7°C or ±0.5% ±1.0°C or ±0.4%
T Type T Copper Constantan
(45% Nickel,
32-662°F (0-350°C) ±1°C or ±0.75% ±.5°C or ±0.4%
N Type N Nicrosil
(84.6% Nickel,
14% Chromium,
1.4% Silicon)
Nisil
(95.6% Nickel,
4.4 % Silicon)
32-2282°F (0-1250°C) ±2.2°C or ±0.75% ±1.1°C or ±0.4%

 

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Wood Dale, IL 60191-1452 USA
Phone: 630.350.2252   Toll Free: 888.268.6396
Fax: 630.350.0232   Email: info@tempco.com

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Fax: 52.55.5561.6889
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Website: www.tempcomexico.com


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