Thermocouple Wire and Extension Wire - Single Pair

Heat Resistant PVC Insulated Twisted Pair with Screen Thermocouple Wire

  • Incorporates Heat Resistant (HR) PVC suitable for use in the temperature range -22°F to +220°F
  • We offer a wide variety of constructions from simple bellwire to shieldeded and armored types in virtually all of the thermocouple combinations
  • We also offer Flame Retardant PVC Insulated Single Pairs. Please contact us with your requirements
HR PVC Twisted Pair with Shield 
One twisted pair of solid conductors
HR PVC insulated. Shielded with
Mylar aluminum tape in contact
throughout with a bare tinned copper drain wire. HR PVC insulation overall.

HR PVC Twisted Pair with Shield 
One twisted pair of stranded
conductors. HR PVC insulated.
Shielded with Mylar aluminum tape
in contact throughout with a bare
tinned copper drain wire. HR PVC
insulation overall.
Stock Number A20 A25 A27 A28 A29
Wire Type (number of strands x AWG)   Solid Solid 7x32 13x32 23x32
Wire Size - AWG   20 16 24 21 19
Insulation   Heat Resistant PVC Heat Resistant PVC
Number of Pairs   1 1
Conductor Configuration   Twisted Twisted
Shielded   Yes Yes
Insulation   Heat Resistant PVC Heat Resistant PVC
ºF   -22 to +220 -22 to +220
ºC   -30 to +105 -30 to +105
Color Coding   Yes Yes
Abrasion Resistance   Good Good
Moisture Resistance   Very Good Very Good
Typical Weight (lbs/1000ft)
excl reel
  28 48 21 28


Diameter under Armor (inches)  
Diameter over Armor (inches)  
inches   0.24" 0.28" 0.16" 0.20" 0.24"
mm   6 7 4 5 6
Popular Order Codes

A20KX, A20KCB, A20TX, A20JX, A20NX, A20EX, A20RCA

A25KX, A25KCB, A25TX, A25JX, A25NX, A25EX, A25RCA

A27KX, A27KCB, A27TX, A27JX, A27NX, A27EX, A27RCA

A28KX, A28KCB, A28TX, A28JX, A28NX, A28EX, A28RCA

A29KX, A29KCB, A29TX, A29JX, A29NX, A29EX, A29RCA


All dimensions are approximate
Round cross section. Rejects
electromagnetic and electrostatic
Round cross section. Rejects
electromagnetic and electrostatic

Thermocouple Wire Enquiry Form

1. Stock Number

2. Wire Details

3. Color Code

4. Quantity Required

 in feet
Contact Details

Company Name

Your Name



Additional Information

If your enquiry is for more than one style of Wire, please email us with your requirements or use the box below

Send Enquiry  


Contact Us

About TC

FREE Guide

Privacy Policy

Terms and Conditions

FREE Wallchart Guide

Join over 500,000 engineers and buyers who have already received our FREE 74 page A3 Guide to Thermocouple and Resistance Thermometry

Company Name
  Address 1
Your Name
  Address 2
Title / Dept.
  ZIP Code
Company Name
Your Name
Title / Dept.
Address 1
Address 2
ZIP Code

We will only ever use the information you provide to occasionally contact you regarding our products and we will never disclose your details to a third party. Our privacy policy can be viewed here

I agree to the terms and conditions listed in the Privacy Policy

View our ISO 90001/2008 Certficate

Thermocouple Sensors
Mineral Insulated Thermocouples
Thermocouples with Mini Plug
Thermocouples with Terminal Head
Thermocouples with Wire
High Temperature Thermocouples
General Purpose Thermocouples
IECex/ATEX Thermocouple Sensors
Ceramic Thermocouple Sensors
Fast Response Thermocouple Sensors
Autoclave Thermocouple Sensors
Surface Measurement Thermocouple Sensors
FEP Insulated Thermocouple

Platinum Resistance Thermometers
Mineral Insulated RTD Pt100 Sensors
Rigid Stem RTD Pt100 Sensors
Hand Held RTD Pt100 Sensors
Surface Measurement RTD Pt100 Sensors
RTD Pt100 Sensors with Wire
RTD Pt100 Sensors with Mini Plug
Autoclave RTD Pt100 Sensors
RTD Pt100 with Terminal Head
IECex/ATEX Platinum Resistance Thermometers
Fast Response RTD Pt100 Sensors
Air Temperature RTD Pt100 Sensors
Magnetic RTD Pt100 Sensors
PVC Single Pair Thermocouple and Extension Wire
PFA Single Pair Thermocouple and Extension Wire
Fiberglass Single Pair Thermocouple & Extension Wire
PVC Multipair Thermocouple Wire
PFA Multipair Thermocouple Wire
Fiberglass Multipair Thermocouple Wire
PVC RTD Pt100 Wire
PFA RTD Pt100 Wire
Fiberglass RTD Pt100 Wire

Miniature Thermocouple Connectors
Mini Thermocouple Connectors – 410ºF Rated
Mini Thermocouple Connectors – 660ºF Rated
Mini Thermocouple Connectors – 1200ºF Rated
Mini Thermocouple Connector Accessories
Mini Thermocouple Connector Panels
Mini Three Pin Connectors

Standard Thermocouple Connectors
Standard Thermocouple Connectors – 410ºF
Standard Thermocouple Connectors – 660ºF Rated
Standard Thermocouple Connectors – 1200ºF Rated
Standard Thermocouple Connector Accessories
Standard Thermocouple Connector Panels
Standard Three Pin Connectors
Hand Held Indicators
Temperature Transmitters
Temperature Controllers
Temperature Calibrators
Chart Recorders
Multi Channel Indicator
DIN Rail Mounted Transmitters
Head Mounted Transmitters
IECEx/ATEX Rated Transmitters
Dry Block Calibrator
Temperature Dataloggers

Temperature Accessories
Compression Fittings
Pressure and Vacuum Feedthroughs
IECEx/ATEX Compression Fittings

Calibration Services

© 2006- TC Measurement and Control, Inc, PO Box 65, Hillside, IL 60162
Tel.: 877 249 1777, Fax: 708 449 0777, Email: