Dekoron Wires and Cables LLC

General Information


Thermocouple Conductors & Color Codes

Dekoron's standard thermocouple extension cables are manufactured to the ANSI MC96.1 standard, but many other standards are available. The chart below shows the compounds and color codes on some of the most common types of thermocouple extensions and standards.

T H E R M O C O U P L E   I N F O R M A T I O N
Type Alloy Standards & Color Codes
American International British Japanese German French
+ - ASTM MC96.1 IEC 584 BS 1843 JIS 1680 DIN 43714 NFC 42324
KX
CHROMEL
ALUMEL
+
YELLOW
+
GREEN
+
BROWN
+
RED
+
RED
+
YELLOW
-
RED
-
WHITE
-
BLUE
-
WHITE
-
GREEN
-
PURPLE
JACKET
YELLOW
JACKET
GREEN
JACKET
RED
JACKET
BLUE
JACKET
GREEN
JACKET
PURPLE
JX
IRON
CONSTANTAN
+
WHITE
+
GREEN
+
BROWN
+
RED
+
RED
+
YELLOW
-
RED
-
WHITE
-
BLUE
-
WHITE
-
BLUE
-
BLACK
JACKET
BLACK
JACKET
BLACK
JACKET
BLACK
JACKET
YELLOW
JACKET
BLUE
JACKET
BLACK
TX
COPPER
CONSTANTAN
+
YELLOW
+
GREEN
+
BROWN
+
RED
+
RED
+
YELLOW
-
RED
-
WHITE
-
BLUE
-
WHITE
-
BROWN
-
BLUE
JACKET
BLUE
JACKET
BROWN
JACKET
BLUE
JACKET
BROWN
JACKET
BROWN
JACKET
BLUE
EX
CHROMEL
CONSTANTAN
+
PURPLE
+
PURPLE
+
BROWN
+
RED
+
RED
+
YELLOW
-
RED
-
WHITE
-
BLUE
-
WHITE
-
BLACK
-
ORANGE
JACKET
PURPLE
JACKET
PURPLE
JACKET
BROWN
JACKET
PURPLE
JACKET
BLACK
JACKET
ORANGE
NX
NICROSIL
NISIL
+
ORANGE
+
PINK
+
ORANGE
N/A N/A N/A
-
RED
-
WHITE
-
BLUE
JACKET
ORANGE
JACKET
PINK
JACKET
ORANGE
RX/SX
COPPER
PCLW
+
BLACK
+
ORANGE
+
WHITE
+
RED
+
RED
+
YELLOW
-
RED
-
WHITE
-
BLUE
-
WHITE
-
WHITE
-
GREEN
JACKET
GREEN
JACKET
ORANGE
JACKET
GREEN
JACKET
BLACK
JACKET
WHITE
JACKET
GREEN
BX
COPPER
COPPER
+
GRAY
+
GRAY
N/A +
RED
+
RED
N/A
-
RED
-
WHITE
-
WHITE
-
GRAY
JACKET
GRAY
JACKET
GRAY
JACKET
GRAY
JACKET
GRAY

IEC allows for thermocouple extension cables to be installed in intrinsically safe systems.
In such cases, the outer jacket is blue in color, but the conductor color code is unchanged.