Thermocouple Wire
General Information - Color Codes

 

ANSI/ASTM COLOR CODE FOR THERMOCOUPLE AND THERMOCOUPLE EXTENSION WIRE
ANSI/ASTM TYPE
WIRE ALLOYS
POLARITY
THERMOCOUPLE WIRE COLOR
ANSI/ASTM TYPE
T/C EXTENSION WIRE COLOR
INDIVIDUAL
OVERALL
INDIVIDUAL
OVERALL
T
COPPER
CONSTANTAN
+TP
BLUE
BROWN
TX
BLUE
BLUE
-TN
RED
RED
J
IRON
CONSTANTAN
+JP
WHITE
BROWN
JX
WHITE
BLACK
-JN
RED
RED
E
CHROMEL
CONSTANTAN
+EP
PURPLE
BROWN
EX
PURPLE
PURPLE
-EN
RED
RED
K
CHROMEL
ALUMEL
+KP
YELLOW
BROWN
KX
YELLOW
YELLOW
-KN
RED
RED
N
NICROSIL
NISIL
+NP
ORANGE
BROWN
NX
ORANGE
ORANGE
-NN
RED
RED
R
PLATINUM 13%RHODIUM
PLATINUM
+RP
-
-
RX
BLACK
GREEN
-RN
-
-
RED
S
PLATINUM 10%RHODIUM
PLATINUM
+SP
-
-
SX
BLACK
GREEN
-SN
-
-
RED
B
PLATINUM 30%RHODIUM
PLATINUM 6% RHODIUM
+BP
-
-
BX
GREY
GREY
-BN
-
-
RED

 

THERMOCOUPLE WIRE COLOR CODES

 

THERMOCOUPLE EXTENSION WIRE COLOR CODES

 

For more information regarding Marlin Thermocouple Wire,
Please call us at 1-800-321-6648 or email us at marlincle@marlinmfg.com

 

 

 
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Phone: (216) 676-1340 or (800) 321-6648·
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