Thermocouple & Extension Wire

Thermocouple extension wire is a hardwearing type of wire used for connecting a thermocouple probe to a readout instrument. Thermocouples are sensors that measure temperature across a wide range of applications in most industrial environments.

What is thermocouple extension wire made from?

Thermocouple extension wire is made from a lower grade of wire than that used in thermocouple probes, so is more economical when used at length. It's typically made with colour-coded (usually PVC) insulation applied to each wire leg. The negative lead is usually insulated in red and the positive lead is the colour of the thermocouple. For added durability and flexibility, a metal overbraid is applied to the insulated wire. For PVC wire this is a tinned copper overbraid, and for PFA it's stainless steel. This added layer protects the wire against abrasion.

Why use thermocouple extension wire?

Thermocouple extension wire is only used to extend the distance between a thermocouple probe and the instrument reading the signal. Thermocouple grade wire is used to make the sensing point of the thermocouple. Extension wire has a lower ambient temperature limit and can't be used in a thermocouple's sensing point.


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Beskrivning Pris Thermocouple Type Number of Cores Length Minimum Operating Temperature Maximum Operating Temperature Screened/Unscreened Core Strands Insulation Material Cable Shape Number of Strands Size of Strands American Wire Gauge Series Standards Met
RS-artikelnummer 219-4551
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213,00 kr
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K 2 25m -10°C +105°C Unscreened 7/0.2 mm PVC Multicore 7 0.2 mm - - BS 1843, RoHS Compliant
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K 2 50m -75°C +260°C Unscreened 7/0.2 mm PFA Multicore 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5729
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K 2 10m -75°C +260°C - 1/0.3 mm PFA Teflon Flat Pair 1 0.3 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5823
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611,95 kr
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RTD 4 10m -40°C +200°C - 7/0.2 mm Silicone Rubber Twisted 7 0.2 mm - - IEC 751, RoHS Compliant
RS-artikelnummer 433-4199
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2 005,21 kr
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S 1 25m - +250°C Unscreened 14/0.3 mm Silicone Rubber Single Core 14 0.3 mm - - RoHS Compliant
RS-artikelnummer 827-5934
VarumärkeRS PRO
863,47 kr
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K 2 50m -75°C +260°C - 1/0.508 mm PFA Teflon Twisted 1 0.508 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 814-0052
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268,42 kr
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K 2 25m -60°C +350°C - 1/0.3 mm Glass Fibre Flat Pair 1 0.3 mm - - ANSI MC96.1, RoHS Compliant
RS-artikelnummer 827-5798
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419,04 kr
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J 2 10m -75°C +260°C - 1/0.3 mm PTFE Flat Pair 1 0.3 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 455-4264
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344,23 kr
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J 2 25m -60°C +400°C Unscreened 7/0.2 mm Fibreglass Multicore 7 0.2 mm - - BS 4937 Part 30 1993 IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5801
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K 2 10m -75°C +260°C - 1/0.2 mm PTFE Twin Twisted 1 0.2 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5833
VarumärkeRS PRO
763,57 kr
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K 2 50m -60°C +350°C - 1/0.3 mm Glass Fibre Flat Pair 1 0.3 mm - - IEC 751, RoHS Compliant
RS-artikelnummer 827-5805
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728,66 kr
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K 2 50m -75°C +260°C - 1/0.2 mm PTFE Twin Twisted 1 0.2 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 236-3921
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342,21 kr
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J 2 25m -10°C +105°C Screened 7/0.2 mm PVC Multicore 7 0.2 mm - - BS 4937 Part 30 1993 IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5592
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204,05 kr
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J 2 25m -10°C +105°C - 7/0.2 mm PVC Flat Pair 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5990
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330,16 kr
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J 2 25m -75°C +260°C - 1/0.508 mm PTFE Twisted 1 0.508 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5596
VarumärkeRS PRO
387,21 kr
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J 2 50m -10°C +105°C - 7/0.2 mm PVC Flat Pair 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5836
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5 121,50 kr
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RTD 4 100m -75°C +260°C Screened 7/0.2 mm PFA Teflon Twisted 7 0.2 mm - - IEC 751, RoHS Compliant
RS-artikelnummer 827-5754
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K 2 100m -75°C +260°C - 7/0.2 mm PFA Teflon Twin Twisted 7 0.2 mm - - IEC 584-3, RoHS Compliant
RS-artikelnummer 236-3892
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T 2 25m -75°C +250°C Unscreened 7/0.2 mm PTFE Flat 7 0.2 mm - - BS 4937 Part 30 1993 IEC 584-3, RoHS Compliant
RS-artikelnummer 827-5621
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K 2 10m -10°C +105°C - 13/0.2 mm PVC Flat Pair 13 0.2 mm - - IEC 584-3, RoHS Compliant
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