Address: P.O.

Box 461947 Garland, TX 75046

Phone: 972-494-1566 Toll Free: 1-800-889-5478
Website: www.thermosensors.com

A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

Thermocouple Wire
This section has been developed to serve as a guide in the selection of wires to
accomplish most all temperature measuring requirements. Featured is a large selection of
thermoelements, insulation materials and constructions. Should you need assistance,
Thermo Sensors' sales personnel are anxious to help you in selecting the wire to give
optimum performance in your application.

Thermo Sensors' thermocouple and extension wires are known for their quality performance and reliability. Careful attention
is given to the proper selection and matching of conductors to ensure conformance to standard limits of error as defined in
ANSI C96.1. Unless otherwise specified, all wire will be furnished to standard limits of error. Many of the wires are available
with special limits of error and must be specified when ordering.

Technical Data
Limits of Error

ANSI Limits of Error

Thermo Sensors' thermocouple and extension wires are known for their quality performance and reliability. Careful attention
is given to the proper selection and matching of conductors to ensure conformance to standard limits of error as defined in
ANSI C96.1*. Tables on this page show the limits of error for both thermocouple and extension grade wires. Unless
otherwise specified, all wire will be furnished to standard limits of error. Many of the wires are available with special limits of
error and must be specified when ordering.

Thermo Sensors provides a calibration service for customers who require known deviations from specified temperature
points. Each coil or spool of wire so certified is marked and a "Certificate of Calibration" is furnished. Certification
temperatures available are -320°F, -110°F, 32°F, and 2000°F and must be specified by the customer. All equipment used in
the certification is traceable to the National Bureau of Standards.

*The American National Standards Institute (ANSI) designations have replaced the previous Instrument Society of America
(ISA) designations for thermocouple materials. ANSI Standard C96.1-1975, or latest version, is the applicable standard for
wires listed in this catalog unless otherwise noted.

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Limits of Error for Thermocouple Wire

Reference Junction at 32°F

Type Temperature Range Limits of Error

Standard Special
(whichever is greater) (whichever is greater)

T 0 to 350°C ± 1°C or ± .75% ± .5°C or ± .4%

32 to 662°F ± 2°F ± 1°F

J 0 to 750°C ± 2.2°C or ± .75% ± 1.1°C or ± .4%

32 to 1382°F ± 4°F ± 2°F

E 0 to 900°C ± 1.7°C or ± .5% ± 1°C or ± .4%

32 to 1652°F ± 3°F ± 2°F

K 0 to 1250°C ± 2.2°C or ± .75% ± 1.1°C or ± .4%

32 to 2202°F ± 4°F ± 2°F

R, S 0 to 1450°C ± 1.5°C or ± .25% ± .6°C or ± .1%

32 to 2642°F ± 3°F ± .1°F

B 800 to 1700°C ± .5°

1472 to 3092°F

Sub-Zero Limits of Error

Thermocouple materials are normally supplied to meet the limits of error specified in the table for temperatures above 0°C.
These materials, however, may not fall within the sub-zero limits of error given in the following table. If materials are required
to meet the sub-zero limits, the purchase order must so state. Special pricing for selection of materials will be required.

T -200 to 0°C ± 1°C or ± 1.5%

-328 to 32°F ± 2°F

E -200 to 0°C ± 1.7°C or ± 1%

-328 to 32°F ± 3°F

K -200 to 0°C ± 2.2°C or ± 2%

-328 to 32°F ± 4°F

Little information is available to justify establishing special limits of error for sub-zero temperatures. Limited experience
suggests the following limits for types E and T thermocouples.

E -200 to 0°C ± 1°C or ± .5%

-328 to 32°F ± 2°F

T -200 to 0°C ± .5°C or ± .8%

-328 to 32°F ± 1°F

These limits are given only as a guide. Due to the characteristics of the materials, sub-zero limits of error for Type J
thermocouples and special sub-zero limits for Type K thermocouples are not listed.

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Limits of Error for Extension Wire

Reference Junction at 32°F

Type Temperature Range Limits of Error

Standard Special
KX 0 to 200°C ± 2.2°C
32 to 392°F ± 4°F

JX 0 to 200°C ± 2.2°C ± 1.1°C

32 to 392°F ± 4°F ± 2°F

EX 0 to 200°C ± 1.7°C
32 to 392°F ± 3°F

TX -60 to 100°C ± 1°C ± .5°C

-76 to 212°F ± 2°F ± 1°F

Limits of Error for Thermocouple Compensating Extension Wire

Reference Junction at 32°F

Compensating Type Thermocouple Type Temperature Range Limits of Error

RSX R, S 0 to 200°C ± 5°C
32 to 382°F ± 9°F

BX B 0 to 100°C ± 0°C -3.7°C*

32 to 212°F ± 0°F -6.7°F*

*Due to the non-linearity of the types of R, S, and B temperature - EMF curves, the error introduced into a thermocouple
system by the compensating wire will be variable when expressed in degrees. The limits of error given in the table above are
based on the following measuring junction temperatures:

Type Wire Measuring Junction Temperature

RSX Greater Than 870°C (1596°F)

BX Greater Than 1000°C (1832°F)

Noise Shielding

Wire for Electromagnetic and Electrostatic Noise Shielding

Electromagnetic Noise is produced due to capacitive coupling of an electric field within the plant to the instrument circuit.
The source of these electric fields may be power lines or other voltage sources mentioned below. The most effective means
of isolating static noise is to have the instrument circuit enclosed within a 100% coverage shield such as an aluminum
backed mylar tape. A drain wire in contact with the aluminum foil carries the interference to the ground.

Magnetic Noise is generated anytime a loop of instrument wires pass through a magnetic field. As the wires come in the
stray magnetic field of an electric motor, generator, power line, relay or similar source, a current is produced in the

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instrument circuit to oppose the magnetic field. That current super-imposed on the sensor signal results in an erroneous and
usually unstable signal input at the instrument.

Electrostatic and magnetic noise sources include but are not limited to the following conditions:
Circuits near:

 Power lines
 Medium sized (SHP) and larger motors
 Control relays
 Transformers
 electrolytic processes
 Induction heating equipment

To minimize the effects of electrostatic and magnetic noise, the use of Thermo Sensors' type PPZS extension wire is
suggested. It incorporates both twisting, 100% shielding with an Aluminum/Mylar tape and drain wire. These wires are listed
in the appropriate extension wire table.

ANSI Designations

ANSI Letter Designations

The tables listed below are provided to the user for a ready reference of ANSI designations as compared to the generic and
trade names for the most common thermocouple materials. The letter "P" in the designation indicates the positive (+) leg of
the calibration while the letter "N" designates the negative (-). Color coding and other means of conductor identification are
also provided.

Thermocouple Grade Wire

ANSI Grade or Generic Trade Single Magnetic Conductor Color Overall Color
Type Names* Conductors Code Code**
E Chromel EP No Purple Brown w/ Purple
Constantan EN No Red Tracer

J Iron JP Yes White Brown w/ White

Constantan JN No Red Tracer

K Chromel KP No Yellow Brown w/ Yellow

Alumel KN Yes Red Tracer

T Copper TP No Blue Brown w/ Blue

Constantan TN No Red Tracer

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Extension Grade Wire

ANSI Grade or Generic Trade Single Magnetic Conductor Color Overall Color
Type Names* Conductors Code Code**

EX Chromel EPX No Purple Purple

Constantan ENX No Red

JX Iron Constantan JPX Yes White Black

JNX No Red

KX Chromel KPX No Yellow Yellow

Alumel KNX Yes Red

TX Copper TPX No Blue Blue

Constantan TNX No Red

RX Copper RPX No Black Green

Alloy #11 RNX No Red

SX Copper SPX No Black Green

Alloy #11 SNX No Red

BX Copper BPX No Gray Gray

Copper BNX No Red

W325X*** Alloy 203 W3FX No Orange Orange w/ Black

Alloy 225 W25NX Yes Red Tracer

WS26X Alloy 405 WSPX Yes Orange Orange

Alloy 426 W26NX Yes Red

*Trade names: Chromel, Alumel, Constantan - Hoekins Mfg. Co.

**Color Coding: Capton insulations will have a color fiber tracer under the Kapton singles. Overall insulations of Katpon and
Teflon are not color coded.
Some high temperature fibrous insultions are not color coded; others will have a colored tracer. The color pigment burns off
at 300°F.

***Not ANSI Designations

Stranded Wire
Thermocouple and extension wires are usually solid conductors. When greater flexibility is needed, stranded wire is used.
Both constructions are listed in the wire tables. The stranding combination used is given in the wire size column of the
tables.

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Overbraids

Overbraids
Any insulated wire in this bulletin can be furnished with a metal overbraid to give added protection from abrasion and
mechanical damage.
Stranded Overbraids:
- Stainless Steel
- Tinned Copper
Available as special order:
- Flat Stainless Ribbon Braid
- Flat Stainless Steel Spiral Wrap
To specify an overbraid, see "How To Order."

By using the information from the tables on the following pages, a wire can be selected to meet the installation conditions of
most common industrial requirements. However, special constructions and insulations are available. Request a quotation to
your specifications.

How To Order:

Standard Limits of Error Wire:

Specify footage required and the appropriate catalog number from the following tables.
Example: 3000 ft PP16KX

Special Limits of Error Wire:

Same as standard wire except add suffix "-PG" catalog number.
Example: 3000 ft GG20K-PG

Metal Overbraid Wire:

Same as for standard or special wires and add suffic:
"-SS" for stainless steel wire overbraid
"-CU" for tinned copper wire overbraid
Example: 3000 ft GG20K-SS

Thermocouple Wire Types, Construction and Characteristics

Type Single Conductor Overall Temperature ANSI Insulation Remarks
Rating Color Properties
Coded
Insulati Impregnati Insulatio Impregnati Continuo Single Abrasion Moisture
on on n on us Readin Resisten Resisten
g ce ce

HtHt Vitreous - Vitreous - 871°C 1093°C No Fair Fair

Silica Silica 1600°F 2000°F
Fiber Fiber
.020" .020"

GgG Double Modified Glass Modified 482°C 538°C Yes Good Good Impregnati

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Glass Silicone Braid Silicone 900°F 1000°F on retained

Braid .006" to 204°C
.012" (400°F)
Wall

GG Glass Modified Glass Modified 482°C 538°C Yes Fair Good Impregnati
Braid Silicone Braid Silicone 900°F 1000°F on retained
.006" .006" to 204°C
(400°F)

GwG Double Modified Glass Modified 482°C 538°C Yes Fair Good Impregnati
Glass Silicone Braid Silicone 900°F 1000°F on retained
Wrap .006" to 204°C
.005" (400°F)

GnGn Glass - Glass - 482°C 538°C No Fair Fair Heat treate

Braid Braid 900°F 1000°F to
.006" .006" minimize
traying &
remove
binders.

TtGGt Teflon - Teflon - 482°C 538°C Yes Good Excellent Teflon

(TFE) (TFE) 900°F 1000°F good to
Tape (not Coated 260°C
fused) Glass (500°F)
.004", Braid
(TFE)
Coated
Glass
.006"

TtGt Fused - Teflon - 260°C 316°C Yes Fair Very Good

Telfon (TFE) 500°F 600°F
Tape Coated
(TFE) Glass
.004" Braid
.006"

HgHg High - High Light 704°C 871°C No Fair Fair Coating is

Temp Temp Lacquer 1300°F 1600°F retained to
Glass Glass Coating 149°C
Braid Braid (300°F)
.012" .012"

CtCt Ceramic - Ceramic - 1430°C 1430°C No Good Fair

Fiber Fiber 2600°F 2600°F
.015" .020"

NN Nylon - Nylon - 177°C - Yes Excellent Fair Overall

.010" .008"- 350°F jacket is
.010" clear

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P Polyvinyl - Rip Cord - -29 to - Yes Good Excellent

.012"- constructi +105°C
.014" on -20 to
+221°F

TxTx Teflon - Teflon - 204°C 316°C Yes Very Good Excellent

(FEP) (FEP) 400°F 600°F
Extr. Extr. .010"
.008"

TfTf Teflon - Teflon - 260°C 316°C Yes Good Excellent

(TFE) (FEP) 500°F 600°F
Tape Tape
Fused Fused
.008" .008"

TxTxZ Teflon - Teflon - 204°C 316°C Yes Very Good Excellent

S (FEP) (FEP) 400°F 600°F
Extr. Extruded
.009" .010"
Twisted;
Alum.-
Mylar
Shield w/
Drain
Wire

KZ Fused - None - 316°C 427°C Yes Excellent Excellent FEP binder

Kapton Twisted 600°F 800°F (Tracer melts at
Tape s) approx.
.004" 260°C
(500°F)

KK Fused - Fused - 316°C 427°C Yes Excellent Excellent FEP binder

Kapton Kapton 600°F 800°F (Tracer melts at
.006" on .006" on s) approx.
24 ga. 24 ga. 260°C
.004" on .004" on (500°F)
20 ga. 20 ga.

*Mylar, Teflon, Kapton - Trade names of E. I. du Pont de Nemours & Co.

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Insulated Thermocouple Wire

Thermocouple Wire **Color Code: Positive Wire (+) - Yellow
Duplex - ANSI Type K Negative Wire (-) - Red
Overall Jacket - Brown with Yellow Tracer

Catalog Wire Size Type of Res* Insulations Nominal Approx.

Number Wire Size Shipping
Gauge Inch Conductors Overall Inches Weight
#MFT

HtHt20K 20 .032 Solid .590 Vitreous Silica Fiber Braid Vitreous Silica Fiber Braid .104 x 16
.176

GG20K 20 .032 Solid .590 Glass Braid Glass Braid .055 x 8

.100

GwG20K 20 .032 Solid .590 Glass Wrap Glass Braid .054 x 8

.095

GnGn20K 20 .032 Solid .590 Nonimpregnated Glass Nonimpregnated Glass .057 x 9

Braid Braid .102

TtGGt20K 20 .032 Solid .590 Teflon (TFE) Tape, Teflon Teflon (TFE) Impregnated .075 x 11
(TFE) Impregnated Glass Glass Braid .137
Braid

HgHg20K 20 .032 Solid .590 High Temp. Glass Braid High Temp. Glass Braid .100 x 16
.150

CtCt20K 20 .032 Solid .590 Ceramic Fiber Ceramic Fiber .104 x 16

.176

TxTx20K 20 .032 Solid .590 Teflon (FEP) Extruded Teflon (FEP) Extruded .072 x 11
.124

TfTf20K 20 .032 Solid .590 Fused Teflon (TFE) Tape Fused Teflon (TFE) Tape .060 x .10 11

TxTxZS20K 20 .032 Solid .590 Teflon (FEP) Extruded Twisted, Alum.-Mylar & .132 16
Drain Wire: Teflon (FEP)
Extruded

KZ20K 20 .032 Solid .590 Fused Kapton Tape Twisted .087 8

KK20K 20 .032 Solid .590 Fused Kapton Tape Fused Kapton Tape .052 x 11
.096

GgG20FK 20 7/28 Stranded .538 Double Glass Braid Glass Braid .075 x 9
.137

GG24K 24 .020 Solid 1.490 Glass Braid Glass Braid .047 x 4

.081

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GwG24K 24 .020 Solid 1.490 Glass Wrap Glass Braid .042 x 4

.072

P24K 24 .020 Solid 1.490 Polyvinyl Non-Rip Cord .048 x 4

.096

TfTf24K 24 .020 Solid 1.490 Fused Teflon (TFE) Tape Fused Teflon (TFE) Tape .055 x 5
.085

KK24K 24 .020 Solid 1.490 Fused Kapton Tape Fused Kapton Tape .050 x 6
.080

GwG26K 26 .016 Solid 2.370 Glass Wrap Glass Braid .040 x 3

.085

GwG28K 28 .013 Solid 3.770 Glass Wrap Glass Braid .036 x 3

.057

GwG30K 30 .010 Solid 5.980 Glass Wrap Glass Braid .033 x 2

.052

Duplex - ANSI Type T **Color Code: Positive Wire (+) - Blue

Negative Wire (-) - Red
Overall Jacket - Brown with Blue Tracer

Catalog Wire SizeType Res* Insulations Nominal Approx.

Number of Size Shipping
Gauge Inch Wire Conductors Overall Inches Weight
#MFT

GG20T 20 .032 Solid .296 Glass Braid Glass Braid .055 x .100 5

GwG20T 20 .032 Solid .296 Glass Wrap Glass Braid .054 x .095 8

TfGGt20T 20 .032 Solid .296 Teflon (TFE) Tape, Teflon Teflon (TFE) Impregnated .075 x .137 12
(TFE) Impregnated Glass Glass Braid
Braid

TxTx20T 20 .032 Solid .296 Teflon (FEP) Extruded Teflon (FEP) Extruded .072 x .124 11

TfTf20T 20 .032 Solid .296 Fused Teflon (FEP) Tape Fused Teflon (FEP) Tape .080 x .130 11

TxTxZS20T 20 .032 Solid .296 Teflon (FEP) Extruded Twisted, Alum.-Mylar & .132 16
Drain Wire; Teflon (FEP)
Extruded

KK20T 20 .032 Solid .296 Fused Kapton Tape Fused Kapton Tape .052 x .096 11

GG24T 24 .020 Solid .753 Glass Braid Glass Braid .047 x .081 4

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GwG24T 24 .020 Solid .753 Glass Wrap Glass Braid .042 x .072 4

NN24T 24 .020 Solid .753 Nylon Clear Nylon .060 x .095 6

P24T 24 .020 Solid .753 Plolyvinyl Non-Rip Cord .048 x .096 3

TfTf24T 24 .020 Solid .753 Fused Teflon (TFE) Tape Fused Teflon (TFE) Tape .055 x .085 5

KK24T 24 .020 Solid .753 Fused Kapton Tape Fused Kapton Tape .050 x .080 6

GwG28T 28 .013 Solid 1.905 Glass Wrap Glass Braid .036 x .057 2

GwG30T 30 .010 Solid 3.025 Glass Wrap Glass Braid .033 x .053 2

Duplex - ANSI Type J **Color Code: Positive Wire (+) - White

Negative Wire (-) - Red
Overall Jacket - Brown with White Tracer

Catalog Wire Size Type of Res* Insulations Nominal Approx.

Number Wire Size Shipping
Gauge Inch Conductors Overall Inches Weight
#MFT

GG14J 14 .064 Solid .086 Glass Braid Glass Braid .096 x 32

.176

KZ16J 16 .051 Solid .137 Fused Kapton Tape Twisted .125 24

GG20J 20 .032 Solid .357 Glass Braid Glass Braid .055 x 8

.100

GwG20J 20 .032 Solid .357 Glass Wrap Glass Braid .054 x 8

.095

GnGn20J 20 .032 Solid .357 Nonimpregnated Glass Nonimpregnated Glass .057 x 9

Braid Braid .102

TfGGt20J 20 .032 Solid .357 Teflon (TFE) Tape, Teflon Teflon (TFE) Impregnated .075 x 11
(TFE) Impregnated Glass Glass Braid .137
Braid

NN20J 20 .032 Solid .357 Nylon Clear Nylon .068 x 11

.120

TxTx20J 20 .032 Solid .357 Teflon (FEP) Extruded Teflon (FEP) Extruded .072 x 11
.124

TfTf20J 20 .032 Solid .357 Fused Teflon (TFE) Tape Fused Teflon (TFE) Tape .080 x 10
.130

TxTxZs20J 20 .032 Solid .357 Teflon (FEP) Extruded Twisted, Alum.-Mylar & .132 16
Drain Wire; Teflon (FEP)
Extruded

KZ20J 20 .032 Solid .357 Fused Kapton Tape Twisted .067 8

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KK20J 20 .032 Solid .357 Fused Kapton Tape Fused Kapton Tape .052 x 11
.096

GgG20FJ 20 7/28 Stranded .317 Double Glass Braid Glass Braid .075 x 9
.137

GG24J 24 .020 Solid .877 Glass Braid Glass Braid .047 x 4

.081

GwG24J 24 .020 Solid .877 Glass Wrap Glass Braid .042 x 4

.072

TfGGt24J 24 .020 Solid .877 Teflon (TFE) Tape, Teflon Teflon (TFE) Impregnated .062 x 8
(TFE) Impregnated Glass Glass Braid .112
Braid

TfGt24J 24 .020 Solid .877 Fused Teflon (TFE) Tape Teflon (TFE) Impregnated .050 x 8
Glass Braid .082

P24J 24 .020 Solid .877 Polyvinyl Non-Rip Cord .048 x 4

.096

TfTf24J 24 .020 Solid .877 Fused Teflon (TFE) Tape Fused Teflon (TFE) Tape .055 x 5
.085

KZ24J 24 .020 Solid .877 Fused Kapton Tape Twisted .063 4

KK24J 24 .020 Solid .877 Fused Kapton Tape Fused Kapton Tape .050 x 6
.060

GwG26J 26 .015 Solid 1.394 Glass Wrap Glass Braid .040 x 3

.065

GwG28J 28 .013 Solid 2.216 Glass Wrap Glass Braid .036 x 3

.057

GG30J 30 .010 Solid 3.520 Glass Braid Glass Braid .037 x 3

.059

GwG30J 30 .010 Solid 3.520 Glass Wrap Glass Braid .033 x 3

.053

Duplex - ANSI Type E **Color Code: Positive Wire (+) - Purple

Negative Wire (-) - Red
Overall Jacket - Brown with Purple Tracer

Catalog Wire SizeType Res* Insulations Nominal Approx.

Number of Size Shipping
Gauge Inch Wire Conductors Overall Inches Weight #MFT
GG20E 20 .032 Solid .704 Glass Braid Glass Braid .055 x .100 8
TfTf20E 20 .032 Solid .704 Fused Teflon (TFE) Fused Teflon (TFE) .080 x .130 10
Tape Tape
GG24E 24 .020 Solid 1.780 Glass Braid Glass Braid

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*Resistance is stated in ohms per Double fee at 20°C (58°F) and are nominal values.

**Color Coding:
- Kapton Insulations will have a colored fiber tracer under the Kapton on the singles.
- Overall insulations of Kapton and Teflon Tapes are not color coded.
- Some high temperature fibrous insulations are not color coded; others will have a colored tracer. The color pigment burns
off at 300°F.

Thermocouple Extension Wire Types, Construction and Characteristics

(Order by Catalog Numbers as shown below and on Page 8).

Type Single Conductor Overall Temperature ANSI Insulation Properties

Rating Color
Insulation Impregnation Insulation Impregnation Continuous Coded Abrasion Moisture
Resistance Resistance

PN Polyvinyl - Nylon .008" Clear - 105°C Yes Excellent Excellent

.013" 221°F

PP Polyvinyl - Polyvinyl - -29 to +105°C Yes Good Excellent

.015 to 16 .016 to 16 ga. -20 to +221°F
ga. .020 on 14 ga.
.020 on 14
ga.

PPZ Polyvinyl - Polyvinyl .020", - -29 to +105°C Yes Good Excellent

.015" Twisted -20 to +221°F

PPZS Polyvinyl - Polyvinyl .020" - -29 to +105°C Yes Good Excellent

.015" Twisted; Alum.- -20 to +221°F
Mylar Shield w/
Drain Wire

Duplex - ANSI Type KX **Color Code: Positive Wire - Yellow

(+) - Red
Negative Wire - Yellow
(-)
Overall Jacket

Catalog Wire Size Type of Res* Insulations Nominal Approx.

Number Wire Size Shipping
Gauge Inch Conductors Overall Inches Weight #MFT

PP14KX 14 .064 Solid .147 Polyvinyl Polyvinyl .130 x .225 36

PP16KX 16 .051 Solid .233 Polyvinyl Polyvinyl .112 x .188 27

PPZ16KX 16 .051 Solid .133 Polyvinyl Twisted/Polyvinyl .222 28

PPZS16KX 16 .051 Solid .233 Polyvinyl Twisted, Alum-Mylar & Drain .250 29
Wire/Polyvinyl
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PPZ18FKX 18 7/26 Stranded .315 Polyvinyl Twisted, Filler, Polyvinyl .254 39

PP20FKX 20 7/28 Stranded .538 Polyvinyl Polyvinyl .112 x .210 14

PP20KX 20 .032 Solid .590 Polyvinyl Polyvinyl .092 x .150 14

PPZS20KX 20 .032 Solid .590 Polyvinyl Twisted, Alum-Maker & Drain .200 20
Wire/Polyvinyl

Duplex - ANSI Type SX and RX **Color Code: Positive Wire (+) - Black
Compensating Extension Wires for ANSI type Negative Wire (-) - Red
R, S Thermocouples Overall Jacket - Green

Catalog Wire Size Type of Res* Insulations Nominal Approx.

Number Wire Size Shipping
Gauge Inch Conductors Overall Inches Weight #MFT

PP16RSX 16 .051 Solid .016 Polyvinyl Polyvinyl .112 x.188 26

PPZS16RSX 16 .051 Solid .016 Polyvinyl Twisted, Alum.-Mylar & Drain .250 29
Wire/Polyvinyl

RR18FRSX 18 7/26 Stranded .025 Rubber Twisted/Rubber .400 90

GG20RSX 20 .032 Solid .040 Polyvinyl Clear Nylon .081 x .144 17

PP20RSX 20 .032 Solid .040 Polyvinyl Polyvinyl .092 x .150 15

Duplex - ANSI Type JX **Color Code: Positive Wire (+) - White

Negative Wire (-) - Red
Overall Jacket - Black

Catalog Wire Size Type of Res* Insulations Nominal Approx.

Number Wire Size Shipping
Gauge Inch Conductors Overall Inches Weight #MFT

PP14JX 14 .064 Solid .086 Polyvinyl Polyvinyl .130 x .225 37

PN16JX 16 .051 Solid .137 Polyvinyl Clear Nylon .102 x .186 26

PP16JX 16 .051 Solid .137 Polyvinyl Polyvinyl .112 x .188 27

PPZ16JX 16 .051 Solid .137 Polyvinyl Twisted/Polyvinyl .222 28

PPZS16JX 16 .051 Solid .137 Polyvinyl Twisted, Alum.-Mylar & Drain .250 29
Wire/Polyvinyl

PN16FJX 16 7/24 Stranded .125 Polyvinyl Clean Nylon .120 x .212 24

PPZ18FJX 18 7/26 Stranded .185 Polyvinyl Twisted, Filler, Polyvinyl .254 35

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 Address: P.O. Box 461947 Garland, TX 75046
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Website: www.thermosensors.com

A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

PP20FJX 20 7/28 Stranded .317 Polyvinyl Polyvinyl .115 x .190 14

PN20JX 20 .032 Solid .357 Polyvinyl Clear Nylon .081 x .144 16

PP20JX 20 .032 Solid .357 Polyvinyl Polyvinyl .092 x .150 14

TxTx20JX 20 .032 Solid .357 Teflon (FEP) Teflon (FEP) Extruded .072 x .124 11
Extruded

PPZS20JX 20 .032 Solid .357 Polyvinyl Twisted, Alum.-Mylar & Drain .200 20
Wire/Polyvinyl

Duplex - ANSI Type EX **Color Code: Positive Wire (+) - Purple

Negative Wire (-) - Red
Overall Jacket - Purple

Catalog Wire SizeType Res* Insulations Nominal Approx.

Number of Size Shipping
Gauge Inch Wire Conductors Overall Inches Weight #MFT

PP16EX 16 .051 Solid .278 Polyvinyl Polyvinyl .112 x .188 27

PPZ16EX 16 .051 Solid .278 Polyvinyl Twisted/Polyvinyl .222 28

PPZS16EX 16 .051 Solid .278 Polyvinyl Twisted, Alum.-Mylar & Drain .250 29
Wire/Polyvinyl

PP20EX 20 .032 Solid .704 Polyvinyl Polyvinyl .092 x .150 14

PPZS20EX 20 .032 Solid .704 Polyvinyl Twisted, Alum.-Mylar & Drain .200 20
Wire/Polyvinyl

Duplex - ANSI Type TX **Color Code: Positive Wire (+) - Blue

Negative Wire (-) - Red
Overall Jacket - Blue

Catalog Wire Size Type of Res* Insulations Nominal Approx.

Number Wire Size Shipping
Gauge Inch Conductors Overall Inches Weight #MFT

PP14TX 14 .064 Solid .074 Polyvinyl Polyvinyl .103 x .225 37

PP16TX 16 .051 Solid .118 Polyvinyl Polyvinyl .130 x .225 37

PPZ16TX 16 .051 Solid .118 Polyvinyl Twisted/Polyvinyl .222 28

PPZS16TX 16 .051 Solid .118 Polyvinyl Twisted, Alum.-Mylar & Drain .250 29
Wire/Polyvinyl

PP20TX 20 .032 Solid .298 Polyvinyl Polyvinyl .092 x .150 15

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 Address: P.O. Box 461947 Garland, TX 75046
Phone: 972-494-1566 Toll Free: 1-800-889-5478
Website: www.thermosensors.com

A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

PP20FTX 20 7/28 Stranded .272 Polyvinyl Polyvinyl .115 x .190 15

PPZS20TX 20 .032 Solid .298 Polyvinyl Twisted, Alum.-Mylar & Drain .200 20
Wire/Polyvinyl

*Resitance is stated in ohms per Double foot at 20°C (68°F) and are nominal values.

**Not ANSI Designations

Multipair Thermocouple Extension Cable

In many applications the installation of multipair cables is more economical than pulling several single pair wires. The most
common calibrations such as JX, KX, and TX are readily available in cable form.

All cables are furnished with twisted pairs and 100% coverage shield tape providing maximum reduction in magnetic and
electronic interference.

The available standard cables are listed in the following tables. Special constructions can be quoted to your specifications.

Construction Specifications
Conductors 20 AWGA solid thermocouple extension grade wire matched for standard limits of error per ANSI
C96.1. Pairs are twisted.

Conductor .015" of 105°C polyvinyl chloride color coded.*

Insulation

Communication A 20 or 22 gauge polyvinyl chloride insulated copper wire is provided in the cable for communication.
Wire

Identification Each pair is numbered 1, 2, 3, etc.

Lay of Twist 1 1/2" to 2 1/2" - involutes staggered

Shielding All twisted pairs are bundled and wrapped with 100% coverage of an aluminum backed Mylar tape
shield. a 20 AWG bare (solid or stranded) drain wire is in contact with the aluminum side of the tape.

Overall Jacket 80°C polyvinyl chloride, color coded.* Jacket thickness depends on the number of pairs in the cable
per the following table:
No. of Pairs Jacket Thickness
4 and 8 .045"
10, 12, 16, 20, and 24 .060"

*All color coding is per ANSI C96.1.

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 Address: P.O. Box 461947 Garland, TX 75046
Phone: 972-494-1566 Toll Free: 1-800-889-5478
Website: www.thermosensors.com

A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

Standard Multipair Thermocouple Extension Cable

Type KX Pairs Color Code: Positive Wire (+) - Yellow

Negative Wire (-) - Red
Overall Jacket - Yellow

Catalog Number Number of Pairs Gauge Approx. O.D., Inch Approx. Shipping
Weight #/MFT
MP20-4-KX 4 20 .360 83

MP20-8-KX 8 20 .465 131

MP20-12-KX 12 20 .520 198

MP20-16-KX 16 20 .610 245

MP20-20-KX 20 20 .730 285

MP20-24-KX 24 20 .775 338

Type JX Pairs Color Code: Positive Wire (+) - White

Negative Wire (-) - Red
Overall Jacket - Black

Catalog Number Number of Pairs Gauge Approx. O.D., Inch Approx. Shipping
Weight #/MFT
MP20-4-JX 4 20 .360 83
MP20-8-JX 8 20 .465 131
MP20-12-JX 12 20 .520 198
MP20-16-JX 16 20 .610 245
MP20-20-JX 20 20 .730 285
MP20-24-JX 24 20 .775 338

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 Address: P.O. Box 461947 Garland, TX 75046
Phone: 972-494-1566 Toll Free: 1-800-889-5478
Website: www.thermosensors.com

A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

Type TX Pairs Color Code: Positive Wire (+) - Blue

Negative Wire (-) - Red
Overall Jacket - Blue

Catalog Number Number of Pairs Gauge Approx. O.D., Inch Approx. Shipping
Weight #/MFT
MP20-4-TX 4 20 .350 80
MP20-8-TX 8 20 .420 125
MP20-12-TX 12 20 .500 180
MP20-16-TX 16 20 .550 220
MP20-20-TX 20 20 .600 250
MP20-24-TX 24 20 .630 320

Bare Thermocouple Wire

Base Metal - Matched Pairs

ANSI Calibration Type of Wire Wire Size Approx Ft / # Catalog Number

AWG Inches

J Iron/Constantan 8 .128 10 B8J

14 .064 43 B14J
20 .032 175 B20J
24 .020 440 B24J
30 .010 1760 B30J

K Chromel/Alumel 8 .128 10 B8K

14 .064 40 B14K
20 .032 162 B20K
24 .020 420 B24K
30 .010 1685 B30K

E Chromel/Constantan 8 .128 10 B8E

14 .064 40 B14E
20 .032 162 B20E
24 .020 420 B24E
30 .010 1685 B30E

T Copper/Constantan 14 .064 40 B14T

20 .032 162 B20T
24 .020 420 B24T

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 Address: P.O. Box 461947 Garland, TX 75046
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Website: www.thermosensors.com

A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

Noble Metal - Matched Pairs*

ANSI Calibration Type of Wire Wire Size Approx Ft / # Catalog Number

AWG Inches

R Platinum-13% 24 .020 B24R

Rhodium (+) 309
VS
Platinum (-) 282

R Platinum-10% 24 .020 B24S

Rhodium (+) 302
VS
Platinum (-) 282

R Platinum-30% 24 .020 B24B

Rhodium (+) 345
VS
Platinum-6%
Rhodium (-) 294
*Sold as Matched Pairs Only

Iron / Constantan - Type J - Individual Conductors

Positive Negative

ANSI Type of Wire Size Approx. Catalog ANSI Type of Wire Size Approx. Catalog
Calibration Wire AWG ft /# Number Calibration Wire AWG ft /# Number

JP Iron 8 23 B8JP JP Constantan 8 20 B8JN

14 91 B14JP 14 80 B14JN
20 365 B20JP 20 323 B20JN
24 926 B24JP 24 818 B24JN
30 3740 B30JP 30 3290 B30JN

Chromel / Alumel - Type K - Individual Conductors

Positive Negative

ANSI Type of Wire Size Approx. Catalog ANSI Type of Wire Size Approx. Catalog
Calibration Wire AWG ft /# Number Calibration Wire AWG ft /# Number
KP Chromel 8 20 B8KP KN Alumel 8 20 B8KN
14 80 B14KP 14 80 B14KN
20 331 B20KP 20 331 B20KN
24 838 B24KP 24 838 B24KN
30 3370 B30KP 30 3370 B30KN

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 Address: P.O. Box 461947 Garland, TX 75046
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A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

Chromel / Constantan - Type E - Individual Conductors

Positive Negative

ANSI Type of Wire Size Approx. Catalog ANSI Type of Wire Size Approx. Catalog
Calibration Wire AWG ft /# Number Calibration Wire AWG ft /# Number

EP Chromel 8 20 B8EP EN Constantan 8 20 B8EN

14 80 B14EP 14 80 B14EN
20 331 B20EP 20 331 B20EN
24 838 B24EP 24 838 B24EN
30 3370 B30EP 30 3370 B30EN

Copper / Constantan - Type T - Individual Conductors

Positive Negative

ANSI Type of Wire Size Approx. Catalog ANSI Type of Wire Size Approx. Catalog
Calibration Wire AWG ft /# Number Calibration Wire AWG ft /# Number

TP Copper 14 80 B14TP TN Constantan 14 80 B14TN

20 322 B20TP 20 331 B20TN
24 815 B24TP 24 838 B24TN

Metal Sheathed Thermocouple Wire

Cerampak Thermocouple Wire

Cerampak - magnesium oxide insulated, metal sheathed thermocouple wire - is used primarily to fabricate thermocouple
assemblies. The rugged construction of compacted MgO insulation inside a metal sheathing also makes it useful as an
extension wire through harmful environments.

All sheath materials are furnished in a properly annealed condition to allow hand bending in the field.

Cerampak is weldable, flexible - can be bend on a radius two times its diameter - and is moisture resistant when properly
sealed.

Material selected from the following Table B will be furnished in a coil with the ends sealed. No wires will be exposed unless
requested.

Table A is provided to help in the proper selection to suit your requirements.

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 Address: P.O. Box 461947 Garland, TX 75046
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A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

Table A - Nominal Wire Size and Lengths

Sheath, Fraction Diameter, Inches Conductor Size (AWG)*

Single Duplex
- .040 33 N/A

1/16 .063 29 30

1/8 .125 24 26

3/16 .188 19 20

1/4 .250 16 19

5/16 .313 14 16
*Sizes given are nominal minimums. Actual sizes may vary.

Table B - Material Selection

Sheath, Diameter Order Code ANSI Calibration Order Code Sheath Material Order Code

.040" 040 Chromel/Constantan E 304 St. St. 34

1/16" (.063") 1 Iron Constantan J 310 St. St. 30

1/8" (.125") 2 Chromel/Alumel K 316 St. St. 36

3/16" (.188") 3 Copper/Constantan T 347 St. St. 37

1/4" (.250") 4 Plat 10% RH/Plat S 410 St. St. 40

5/16" (.313") 5 Plat 13% RH/Plat R 446 St. St. 46

3/8" (.375") 6 Plat 30% RH/Plat 6% RH B Inconel 600 60

Inconel 601 61

Inconel 702 72

Inconel 800 80

Notes:
1. For Premium Grade (Special Limits of Error) material: add "PG to the calibration code. Example: 4KPG60

2. For Duplex (4 wire) material: add prefix "2" to the calibration code. Example: 42K60

3. The most commonly used sizes and materials are listed. Others are available - Specify.

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 Address: P.O. Box 461947 Garland, TX 75046
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A Leading Manufacturer of Quality Thermocouple and RTD Assemblies Since 1972

How to Order:

Make a selection from each of the 3 sections of Table B and combine to form a catalog number. Specify catalog number and
length required.

For duplex (4 wire), special limits of error, or special material - refer to the notes above.

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