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<h2><strong>What is Thermocouple Extension Wire?</strong></h2><p><a href="https://uk.rs-online.com/web/c/automation-control-gear/sensors/thermocouples/">Thermocouples</a> are temperature sensors which measure temperature in a unique way across many industrial applications. A detailed explanation of Thermocouples can be found in our <a href="https://docs.rs-online.com/96d5/0900766b815e5302.pdf">Thermocouples guide</a>.<p>Thermocouple Extension Wire is used to create a hardwearing connection between the thermocouple probe to a readout instrument and is used to extend a thermocouple signal back to the instrument. At RS, we have many types of thermocouple extension wires suitable for different types of Thermocouples such as:</p><ul><li>J</li><li>K</li><li>L</li><li>N</li><li>R/S</li><li>RTD</li><li>S</li><li>T</li></ul><p>It is important to note that different thermocouple types (e.g. K or S type thermocouple wire) use different mixtures of metals in the cable.</p><h3><strong>What is thermocouple extension wire made from?</strong></h3><p>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.</p><p>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.</p><h3><strong>Why use thermocouple extension wire?</strong></h3><p>This extension grade wire is used to extend a thermocouple signal from a probe back to the instrument reading the signal.</p><p>Thermocouple Extension Wire generally has a lower ambient temperature limit than a thermocouple, therefore it can pass a higher temperature signal as received from the probe, however the wire element cannot be physically exposed to higher temperatures.</p><p>Thermocouple Extension Wire is effective for extension purposes in Thermocouple applications, although Thermocouple Extension Wire may not be used in the probe part of the thermocouple.</p><p>Browse our broad range of Thermocouple Extension Wire offers and order today for next day delivery.</p>

Thermocouple extension wire is used to carry a signal and extend the distance between a thermocouple probe and a readout instrument.

Thermocouple Extension Wire | Extension | RS

Thermocouple & Extension Wire

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