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K Type Thermocouple Duplex Extension Wire

K Type Thermocouple Extension Wire


Item# EXPP-K-20S-1000

 This item is available for quick shipping
Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$925.00
5-9 C$878.75
10-24 C$832.50
25-49 C$786.25
50-99 C$740.00
100+ C$693.75

In stock

Lead Time ( If not in Stock): 8 Days

K Type Thermocouple Extension Wire EXPP-K-20S-1000 EXPP-K-20S-1000
  • High Quality Type "K" Duplex Extension Grade Wire
  • In Stock - Available for Immediate Shipment
  • Choice of Insulation, Wire Gage, & Spool Length

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Temperature Unit
Temperature Min
Temperature Max
Temperature range
Thermocouple Calibration Type
Wire Gauge
Conductor Insulation
Conductor type
Cable Length
Additional Feature
Cable Type
Overall Insulation
Number of Pairs
Overbraiding Type
Special Limit of error
Color Code Standard

Product Specs

ANSI Color Code: Positive Wire, Yellow ; Negative Wire, Red; Overall, Yellow

Ready made Thermocouple Extension Cables are available and in stock, with your choice of connectors.

The "To Order" box contains some examples of popular models. Use the "Part Number Builder" (Below Table) to get pricing for all available models. Use the table below as a guide for types available
Insulation AWG
Insulation Max. Temp* Nominal
Conductor Overall °F °C
16 EXGG-K-16 Solid Glass Braid Glass Braid 392 200 .085 x .130 23
16 EXTT-K-16 Solid PFA PFA 392 200 .086 x .152 21
20 EXTT-K-20 Solid PFA PFA 392 200 .068 x .116 11
24 EXTT-K-24 Solid PFA PFA 392 200 .056 x .092 7
Polyvinyl 14 EXPP-K-14 Solid Polyvinyl Polyvinyl 221 105 .134 x .288 36
16 EXPP-K-16 Solid Polyvinyl Polyvinyl 221 105 .123 x .207 26
16 EXPP-K-16S 7 x 24 Polyvinyl Polyvinyl 221 105 .139 x .226 26
18 EXPP-K-18S 7 x 26 Polyvinyl Polyvinyl 221 105 .138 x .205 22
20 EXPP-K-20 Solid Polyvinyl Polyvinyl 221 105 .095 x .151 16
20 EXPP-K-20S 7 x 28 Polyvinyl Polyvinyl 221 105 .123 x .175 16
24 EXPP-K-24 Solid Polyvinyl Polyvinyl 221 105 .075x .120 5
24 EXPP-K-24S 7 x 32 Polyvinyl Polyvinyl 221 105 .082 x .134 11
16 EXFF-K-16 Solid FEP FEP 392 200 .086 x .152 21
20 EXFF-K-20 Solid FEP FEP 392 200 .068 x .116 11
24 EXFF-K-24 Solid FEP FEP 392 200 .056 x .092 7

*Maximum temperature is for extension grade wire or insulation, whichever is lower.
?Weight of spool and wire, rounded up to next highest lb. (does not include packing material).

Rated 5 out of 5 by from Worked well Extension wire. Worked as advertised. Worked fine in my TC welder too.
Date published: 2016-12-08
Rated 5 out of 5 by from Good quality Extension Wire Easy to handle and terminate, flexible and strong enough for most uses.
Date published: 2021-01-08
Rated 5 out of 5 by from Type K - thermocouple wire It’s a very nice product but very rigid due to the type of insulation required for the high temperature resistance
Date published: 2021-04-02
Rated 5 out of 5 by from Another great Omega product! We have used this wire on multiple projects; does exactly what we need it to do and we will not buy any other brand.
Date published: 2021-03-03
Rated 4 out of 5 by from High Quality Good quality insulation and wire. This is a good product, it does what you need it to do.
Date published: 2021-02-18
Rated 5 out of 5 by from Great way to extend thermocouples. Very well made, solid thermocouple wire. I like that comments were added describing the electric properties of that particular wire.
Date published: 2020-07-02
Rated 5 out of 5 by from Great Wire Wire performed as expected. Easy to manipulate inside of compact junction boxes.
Date published: 2020-04-01
Rated 5 out of 5 by from I love This Wire I have been using this for a bunch of connections this week. What great wire. I love the insulation.
Date published: 2018-02-21
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I am moving a temperature control box off of an oven to a remote location. The control box uses a PLC to control the temperature process. I will mount this new box about 85 feet from the oven, what is the best type K extension wire I should use?

Asked by: will
Thank you for your inquiry. 16,20,24 AWG wire size will work at that distance.
Answered by: Engineer CB
Date published: 2020-07-14

Is stranded wire less efficent to use then solid wire? Error, voltage drop, etc? We currently use solid but it has been breaking often in screw terminals.

Asked by: jpvance
Hey, thank you for your question. In short, no. Stranded wire is no less or more efficient to use in comparison to solid wire. Both wire options are tested and expected to meet the same requirements.
Answered by: AEMO
Date published: 2021-08-25

Can this cable be run in Igus Energy Chain for up to 30'?

Asked by: Arkansan
Thank you for your inquiry. Please send more details of your application to temp@omega.com and we will review and advise.
Answered by: Application Engineer JB
Date published: 2020-05-05

I need K type extension wire to used for temperature up to 700 F. Can you tell me which one that I can use?

Asked by: ImpCare
Thank you for your inquiry! None of our K type extension wire is rated for temperatures this high. Thermocouple grade wire with fiberglass insulation can be used instead which will allow for use up to 900F. https://www.omega.com/en-us/temperature-measurement/temperature-wire-and-cable/thermocouple-wires/xc-k-tc-wire/p/GG-K-20-50
Answered by: Application Engineer JM
Date published: 2021-04-25
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