7
Thermocouple Wire Identification Chart
The different thermocouple types are identified by their
wires color, and where possible, the outer insulation as
well. There are several standards in use throughout the
world.
The table below shows the wire and sheath colors used
for most common thermocouple types. The format
used in this table is:
Table 2. Thermocouple Extension Wire Colors
Type
International
IEC584-3
USA ANSI
MC 96.1
British
BS1843
French
NFC 42-324
German
DIN 43710
J +*
Black
Black
White
Black
Yellow
Black
Yellow
Black
Red
Blue
-
White Red Blue Black Blue
T +
Brown
Brown
Blue
Blue
White
Blue
Yellow
Blue
Red
Brown
-
White Red Blue Blue Brown
K +
Green
Green
Yellow
Yellow
Brown
Red
Yellow
Yellow
Red
Green
-*
White Red Blue Purple Green
N +
Pink
Pink
Orange
Orange
Orange
Orange
-
White Red Blue
B +
Grey
Grey
Grey
Grey
Red
Grey
-
White Red Grey
R & S +
Orange
Orange
Black
Green
White
Green
Yellow
Green
Red
White
-
White Red Blue Green White
C
(W5)
+
White
White
-
Red
*Wire is magnetic
+ Wire
Blue
- Wire