Heatsense manufactures a range of heat tolerant cables which can withstand temperatures up to 1250°C (+2282°F). We also own the INTEMP™ cable brand. Whether you are looking for a solution to work in an environment with extremely high temperatures or for higher accuracy and strict tolerances, we offer a range of cables developed to include increased mechanical resistance, radiation resistance and shielding.
Key factors to consider include conductor materials, insulation, resistance to environmental conditions and compliance with safety standards.
Click on the datasheet links below to see our full range or get in touch about a specific requirement you have.
Where are Heatsense heat resistant cables used?
- Steel and Aluminium Industry
- Glass Factories
- Oil Refineries
- Offshore Rigs
- Pottery Kilns
- Catering & Food Production Ovens
This range of cables also resist chemicals, acids, lubricants, and water and can be used as a power, coaxial, thermocouple and control cable. These cables can also be customer specified to operate in high radiation environments.
Advantages of our heat resistant cables?
Our Heat Resistant cable products are constructed with combinations of Mica Tape, Glass fibre or Ceramic fibre Insulations, for temperature ratings from -75°C to 1250°C.
As well as being easy to handle, easy to install and crimp, our cables have been proven to last up to four times longer than other high temperature cables. Installing Heatsense cables in equipment at the manufacturing stage means fewer breakdowns thus avoiding costly down time
Key Features
- Can be supplied in multicore
- Individual colours available
- Sizes available – 0.50mm² to 35mm²
- Available in a variety of lengths
Can't find what you need?
Our Heat Resistant Cable Range

INTEMP Cables

Glass Fibre, Ceramic & Pure Nickel Cables
Why choose Heatsense for Heat Resistant Cables?
Heat resistant cable performance is fundamentally driven by the interaction between conductor materials, insulation systems and protective layers, particularly in extreme environments where multiple stress factors occur simultaneously. At Heatsense, cable design begins with a deep understanding of how materials behave under thermal load, radiation exposure and mechanical stress. Advanced insulation systems such as mica tapes, glass fibre, ceramic and fluoropolymers are carefully selected to deliver stability across a wide operating range, from sub-zero conditions through to temperatures exceeding 1000°C.
These materials are not interchangeable; each offers distinct advantages in terms of dielectric strength, flexibility, chemical resistance and long-term durability. As explored in our Material Insights resources, fluoropolymers such as PTFE and PFA provide exceptional thermal stability and electrical performance, while inorganic systems such as mica and ceramic deliver superior performance in fire survival and ultra-high temperature applications.
Selecting the correct material system is therefore not just a question of temperature rating, but of understanding the complete operating environment and the interaction between each cable layer. For example, fluoropolymers offer excellent processability and flexibility for complex cable constructions, whereas glass fibre and ceramic systems provide enhanced structural integrity at elevated temperatures where polymers may degrade. Increasingly, engineers must also consider regulatory and environmental factors, particularly around PFAS materials, balancing performance requirements with evolving industry standards.
By combining material science expertise with advanced manufacturing processes such as extrusion, braiding and sintering, Heatsense develops bespoke heat resistant cables that maintain electrical integrity, mechanical strength and reliability over extended service life. This holistic approach ensures that each cable is optimised not just for temperature, but for the full range of environmental, electrical and mechanical challenges it will face in real-world applications.
Certified to AS9100, ISO 9001, and ISO 14001 standards, our commitment to quality ensures that every cable meets the highest industry standards. Whether you require high-temperature sensor cables, thermocouple extensions, or extreme heat power transmission cables, Heatsense Cables provides tailored solutions that push the boundaries of thermal resilience, performance, and innovation.
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