Extension Cable Type K, -60 → +400 °C 2 Core Unscreened Fibreglass Sheath 25m

  • RS Stock No. 236-3836
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Glass Fibre Insulated Extension Cable

Type K or J glassfibre flat pair with stainless steel overbraiding with good temperature resistance but not suitable where fluids are present.

Features and Benefits

Stainless steel braided options
Glass fibre insulated flat pair construction, conductors laid flat, glassfibre insulated with glass fibre jacket, silicone varnished throughout and stainless steel overbraid for added protection and mechanical strength
Colour coded in accordance with BS4937 Pt 30
Temperature rating -60 to +350°C (short periods up to 400°C)
Glass fibre insulated extension cable in thermocouple types; KX, JX or TX
Good temperature resistance but not suitable where fluids are present
Types KX & TX available in solid 1/0.3mm conductors, JX in 7/0.2mm stranded conductors
All types; conductors are made from associated K, J or T thermocouple alloy type
Tolerance Class 2 to IEC-584
Insulation rating -60°C to 350°C (short periods up to 400°C)
Colour code (cores & jacket) to IEC-584-3


Thermocouples are instruments that are designed to provide temperature measurement of substances and have a variety of applications such as;
Medical - research into DNA and hypodermic insertion to detecting a tumour.

  • Vehicle diagnostics - used to monitor and adjust factors such as battery health, exhaust readings, spark plug function and brake performance.

  • Temperature readings in boilers, heating sensors, and ovens

  • Food thermometers, industrial probes, and sensors

What is the difference between screened and unscreened cables?

Screened share a lot in common with unscreened cables however screened cables emit less electromagnetic energy which can cause signal interference with cables that are nearby.

Why choose RS PRO?

RS PRO is our own brand of high-quality products whilst bringing you great value for money. Our wide range of products have been engineered to meet high industry standards, so you are ensured reliable and robust solutions.


BS4937 Part 30 1993 which conforms to IEC 584-3


BS 4937 Part 30 1993

Attribute Value
Thermocouple Type K
Number of Cores 2
Length 25m
Minimum Operating Temperature -60°C
Maximum Operating Temperature +400°C
Screened/Unscreened Unscreened
Core Strands 1/0.315 mm
Insulation Material Fibreglass
Cable Shape Multicore
Number of Strands 1
Size of Strands 0.315 mm
Standards Met IEC 584-3, RoHS Compliant
3 : Next working day
478 Within 5 working day(s) (Global stock)
Price (ex. GST) 1 Reel of 25 Metre(s)
$ 102.31
(exc. GST)
$ 117.66
(inc. GST)
Per Reel
Per Metre*
1 - 5
6 - 11
12 +
*price indicative