1

Duplex Insulated

Iron-Constantan

Duplex

ANSI Type J

ANSI Color Code: Positive Wire, White; Negative Wire, Red; Overall, Brown

AWG

Type

Insulation

Max Temp

Nominal

Wt.† kg/300 m

Insulation

No. Model Number

Wire

Conductor

Overall

°C

°F

Size mm (inch)

(lb/1000')

14

XC-J-14

Solid

590 1100 3.6 x 5.0 (0.140 x 0.200)

18 (38)

20

XC-J-20

Solid

480

900 3.4 x 4.8 (0.135 x 0.190)

8 (16)

20

XT-J-20

Solid

480

900 2.7 x 3.9 (0.105 x 0.155)

7 (15)

Ceramic*

20

XL-J-20

Solid Nextel Ceramic

Nextel Ceramic

480

900 2.4 x 3.4 (0.095 x 0.135)

7 (14)

24

XC-J-24

Solid

370

700 2.9 x 4.4 (0.115 x 0.175)

6 (12)

24

XT-J-24

Solid

370

700 2.2 x 3.4 (0.088 x 0.132)

5 (11)

24

XL-J-24

Solid

370

700 2.0 x 3.0 (0.078 x 0.116)

5 (10)

14

XS-J-14

Solid

590 1100 3.6 x 5.0 (0.140 x 0.200)

16 (35)

Silica*

20

XS-J-20

Solid

Silica

Silica

480

900 2.7 x 3.9 (0.105 x 0.155)

6 (12)

24

XS-J-24

Solid

370

700 2.2 x 3.4 (0.088 x 0.132)

5 (10)

High Temp. 20

HH-J-20

Solid

High

High

480

900 1.5 x 2.7 (0.060 x 0.105)

4 (9)

Glass**

24

HH-J-24

Solid

Temp. Glass

Temp. Glass

370

700 1.1 x 2.2 (0.055 x 0.090)

3 (5)

14

GG-J-14

Solid

Glass Braid

480

900 1.5 x 2.4 (0.060 x 0.095)

4 (9)

20

GG-J-20

Solid

Glass Braid

480

900 1.5 x 2.5 (0.060 x 0.100)

4 (9)

20

GG-J-20S

7 x 28

Glass Braid

480

900 1.3 x 2.0 (0.050 x 0.080)

3 (5)

Glass

24

GG-J-24

Solid

Glass Braid

Glass Braid

370

700 1.3 x 2.2 (0.050 x 0.085)

3 (5)

24

GG-J-24S

7 x 32

Glass Braid

370

700 1.1 x 2.0 (0.045 x 0.075)

2 (4)

28

GG-J-28

Solid

Glass Wrap

370

700 1.0 x 1.4 (0.040 x 0.055)

2 (3)

30

GG-J-30

Solid

Glass Wrap

320

600 0.9 x 1.3 (0.037 x 0.050)

2 (3)

36

GG-J-36

Solid

Glass Wrap

320

600 0.8 x 1.1 (0.033 x 0.045)

1 (2)

Glass with

20

GG-J-20-SB

Solid

482

900 2.3 x 3.0 (0.090 x 0.120)

6 (14)

Stainless

20S

GG-J-20S-SB

7 x 28

Glass

SS Braid

482

900 2.3 x 3.2 (0.090 x 0.127)

7 (15)

Steel

24

GG-J-24-SB

Solid

over Glass

482

900 2.2 x 3.0 (0.085 x 0.117)

5 (11)

Overbraid

24S

GG-J-24S-SB

7 x 32

482

900 2.0 x 2.8 (0.080 x 0.110)

5 (11)

Kapton

20

KK-J-20

Solid

260

500 1.5 x 2.5 (0.060 x 0.100)

5 (11)

Fused

20S

KK-J-20S

7 x 28

Fused

Fused

260

500 1.5 x 2.7 (0.060 x 0.105)

5 (11)

Polymide

24

KK-J-24

Solid

Polymide

Polymide

260

500 1.3 x 1.9 (0.050 x 0.075)

3 (6)

Tape

24S

KK-J-24S

7 x 32

Tape

Tape

260

500 1.3 x 2.2 (0.050 x 0.085)

3 (6)

30

KK-J-30

Solid

260

500 0.6 x 1.1 (0.026 x 0.044)

3 (5)

PFA and

30

TG-J-30

Solid

260

500 0.9 x 1.2 (0.034 x 0.047)

1 (2)

Glass

36

TG-J-36

Solid

PFA

Glass Braid

260

500 0.7 x 1.0 (0.028 x 0.038)

1 (2)

40

TG-J-40

Solid

260

500 0.7 x 0.9 (0.026 x 0.035)

1 (2)

20

TT-J-20

Solid

260

500 1.7 x 3.0 (0.068 x 0.116)

5 (11)

20

TT-J-20S

7 x 28

260

500 1.9 x 3.2 (0.073 x 0.126)

5 (11)

Neoflon

22

TT-J-22S

7 x 30

260

500 1.7 x 3.4 (0.065 x 0.133)

4 (9)

PFA

24

TT-J-24

Solid

PFA

PFA

260

500 1.4 x 2.4 (0.056 x 0.093)

3 (6)

(High

24

TT-J-24S

7 x 32

260

500 1.6 x 2.6 (0.063 x 0.102)

3 (6)

Performance) 30

TT-J-30††

Solid

260

500 0.6 x 1.0 (0.024 x 0.040)

1 (2)

36

TT-J-36††

Solid

260

500 0.5 x 0.8 (0.019 x 0.030)

1 (2)

40

TT-J-40††

Solid

260

500 0.4 x 0.7 (0.017 x 0.026)

1 (2)

PFA

20

TT-J-20-TWSH

Solid

260

500

3.7 (0.15)

9 (20)

Polymer

20S

TT-J-20S-TWSH

7 x 28

PFA

PFA Polymer

260

500

3.8 (0.15)

9 (20)

w/Twisted

24

TT-J-24-TWSH

Solid

Polymer

and Shielding

260

500

2.7 (0.11)

4 (9)

& Shielded 24S

TT-J-24S-TWSH

7 x 32

260

500

2.9 (0.12)

4 (9)

Conductors

20

FF-J-20

Solid

200

392 1.7 x 3.0 (0.068 x 0.116)

5 (11)

Neoflon FEP 24

FF-J-24

Solid

FEP

FEP

200

392 1.7 x 3.0 (0.056 x 0.092)

3 (5)

FEP

20

FF-J-20-TWSH

Solid

200

392

3.7 (0.15)

9 (20)

Polymer

20S

FF-J-20S-TWSH

7 x 28

FEP

FEP Polymer

200

392

3.8 (0.15)

9 (20)

w/Twisted

24

FF-J-24-TWSH

Solid

Polymer

and Shielding

200

392

2.7 (0.11)

4 (9)

& Shielded 24S

FF-J-24S-TWSH

7 x 32

200

392

2.9 (0.12)

4 (9)

Conductors

TFE Tape

20

TFE-J-20

Solid

260

500 1.5 x 2.5 (0.060 x 0.100)

5 (11)

Polymer

20S

TFE-J-20S

7 x 28

TFE Tape

Fused TFE

260

500 1.5 x 2.7 (0.060 x 0.105)

5 (11)

24

TFE-J-24

Solid

Polymer

Tape Polymer

260

500 1.3 x 1.9 (0.050 x 0.075)

3 (6)

24S

TFE-J-24S

7 x 32

260

500 1.3 x 2.2 (0.050 x 0.085)

3 (6)

Polyvinyl

24

PR-J-24

Solid

Polyvinyl

(Rip Cord)***

105

221 1.3 x 2.2 (0.050 x 0.085)

3 (5)

24

PP-J-24S

7 x 32

Polyvinyl

105

221 2.0 x 3.4 (0.082 x 0.134)

3 (5)

* Has color tracers on jacket and conductors, **HH Wire has trace thread in positive leg, negative leg is red,

overall has trace thread.

*** Two insulated leads bonded together, but with no overjacket.

† Weight of spool and wire rounded to the next highest lb (does not include packing material).

†† Overall color clear.

††† To order special limits of error wire, add “-SLE” to model number before spool length.

Ordering Example: GG-J-24-SLE-1000, 1000' (300 m) of Type J duplex insulated special limits of error

thermocouple wire.

Note: Published prices are based on market value at time of printing and are subject to change due to

Nickel surcharges, Chromium and precious-metal market fluctuations.

Now You Can Add

Stainless Steel, Inconel

®

or Tinned Copper

Overbraiding

to Your

Insulated Thermocouple

Wire!