Thermocouple
Extension cable
Applications
Tyco Electronics manufactures a broad range of Raychem
thermocouple extension cables in four thermoelement
combinations. Each provides accurate transmission of
electromotive force (EMF) from a thermocouple
element lead wire of the same conductor material to a
thermometer, also known as a pyrometer.
All four types of thermocouple extension cables use
19-strand conductors and are available in twisted pair,
jacketed twisted pair, and shielded and jacketed
twisted pair configurations. A range of cables is
available from 16 AWG to 24 AWG.
Wires and cables are insulated and jacketed with
radiation-crosslinked ETFE, which has a continuous
operating temperature of –65°C to 200°C. This
material, which is fully specified in Raychem SPEC 55,
has excellent physical properties and is highly resistant
to a wide range of chemicals.
Operating temperature range
-65°C to 200°C
Features and benefits
19-strand conductor for flexibility.
Available in:
Americas
Europe
Asia Pacific
9-64 Wire and Cable
Fax-on-demand
US only
(800) 260-9099
Outside US
(650) 257-2301
Visit our website at www.tycoelectronics.com
Properties
Extension
cable type
EX
JX
KX
TX
Thermoelement
combination
Chromel-Constantan
Iron-Constantan
Chromel-Alumel
Copper-Constantan
Initial calibration tolerances for thermocouple extension wires
EMF (mv)*
Temperature range
Limit of range
(min.–max.)
0°C to 200°C
0°C to 200°C
0°C to 200°C
0°C to 100°C
±1.7°C
±2.2°C
±2.2°C
±1.0°C
6.18–6.45
5.15–5.39
4.00–4.19
4.24–4.32
Note: The above is in accordance with ANSI-MC-96.1-1982.
*EMF is measured in millivolts (mv) at 100°C with reference junction at 0°C.
Product dimensions** (nominal)
Twisted pair
Outside
diameter in
mm
(in)
2.29
(.090)
2.60
(.102)
2.99
(.118)
3.56
(.140)
3.96
(.156)
AWG
size
24
22
20
18
16
Weight
in kg/km
(lb/1000 ft)
7.3
9.9
(4.9)
(6.7)
Twisted, jacketed pair
Outside
Weight
diameter in
in kg/km
mm
(in)
(lb/1000 ft)
2.67
(.106)
2.99
(.118)
3.40
(.134)
3.96
(.156)
4.37
(.172)
9.9
(6.7)
13.0
(8.8)
18.0
(12.1)
25.1
(16.9)
30.9
(20.8)
Twisted, shielded, 38 AWG
braid strand, jacketed pair
Outside
Weight
diameter in
in kg/km
mm
(in)
(lb/1000 ft)
3.12
(.123)
3.43
(.135)
3.83
(.151)
4.34
(.173)
4.80
(.189)
16.5
(11.1)
21.4
(14.4)
27.8
(18.7)
37.5
(25.2)
44.9
(30.2)
14.4
(9.7)
20.9
(14.1)
26.3
(17.7)
**Dimensions for 19-strand-conductor thermocouple. Extension Types EX, JX, KX, and TX.
Users should independently evaluate the suitability of the product for their application.
Before ordering check with factory for most current data.
Wire and Cable 9-65
Thermocouple
(cont’d.)
Extension cable
Color-Coding
Thermocouple extension cables are available with the
wires color-coded in accordance with four standards:
MIL-STD-687, ANSI-MC-96.1, British Standard Code
BS 1843, and Japanese JISC-C-1602.
Special cables
Thermocouple extension cables are also available in
solid-conductor and seven-strand-conductor
configurations. They come in a variety of thermoelement
combinations, gauges, insulations, and multiple-pair
designs, and they are available for outer space
applications. Contact Tyco Electronics for details.
Extension cable
Type EX
ANSI-MC-96.1
British Std.-BS 1843
JISC-C-1602
Chromel +
Violet
Brown
Violet
Constantan -
Red
Blue
Red
Jacket
(if present)
Violet
Brown
Violet
Color code
Wire
7/2
1/6
7/2
Jacket
7
1
7
Type JX
MIL-STD-687
ANSI-MC-96.1
British Std.-BS 1843
JISC-C-1602
Iron +
Black
White
Yellow
Red
Constantan -
Yellow
Red
Blue
White
Jacket
White
Black
Black
Yellow
Wire
0/4
9/2
4/6
2/9
Jacket
9
0
0
4
Type KX
MIL-STD-687
ANSI-MC-96.1
British Std.-BS 1843
JISC-C-1602
Chromel +
White
Yellow
Brown
Red
Alumel -
Green
Red
Blue
White
Jacket
White
Yellow
Red
Blue
Wire
9/5
4/2
1/6
2/9
Jacket
9
4
2
6
Type TX
MIL-STD-687
ANSI-MC-96.1
British Std.-BS 1843
JISC-C-1602
Copper +
Red
Blue
White
Red
Constantan -
Yellow
Red
Blue
White
Jacket
White
Blue
Blue
Brown
Wire
2/4
6/2
9/6
2/9
Jacket
9
6
6
1
9-66 Wire and Cable
Fax-on-demand
US only
(800) 260-9099
Outside US
(650) 257-2301
Visit our website at www.tycoelectronics.com
Part Number Selection Table
The thermocouple cable options outlined in the
table on the previous page can be ordered from the
table below.
Tyco Electronics will assign a new part number on
request for cables falling outside the range shown in
the table.
Type
EX
Twisted pair
CTC-0077
Twisted,
jacketed pair
CTC-0079
Shield plating*
T
N
S
Twisted, shielded,
jacketed pair
CTC-0074
55A6169
—
CTC-0044
—
—
CTC-0018
CTC-0015
CTC-0057
CTC-0073
—
—
JX
55A8131
CTC-0080
T
N
S
KX
55A8002
CTC-0012
T
N
S
TX
CTC-0078
CTC-0081
T
N
S
*T = Tin-coated copper.
N = Nickel-coated copper.
S = Silver-coated copper.
Users should independently evaluate the suitability of the product for their application.
Before ordering check with factory for most current data.
Wire and Cable 9-67