Type N Thermocouples

UK Manufactured Type N Thermocouple

Type N Thermocouple is a Base metal thermocouple made from conductors containing Nickel – Chromium – Silicon, and Nickel – Silicon alloys and is suited for measuring temperatures up to +1250°C. We manufacture N type thermocouples to your specifications or as replacements to existing sensors. We have manufactured thermocouples for over 25 years and are solely focused on designing and manufacturing temperature sensors. Please call or email us to discuss your requirements.

Need some help?

If you are unsure exactly what you need, get in touch and we can help identify your requirements.

Type N Thermocouple Designs

The N type thermocouple range we offer is extensive suited to different applications. View the details of each type of design we offer for N type thermocouples.

Mineral Insulated Type N – Metal sheath insulated with magnesium oxide powder also called MIMS.
Cable/Wire Type N – Flexible sensors in PVC, PTFE or Glass Fibre. Many cold and hot-end designs.
Type N with Ceramic Sheaths – High-temperature design with ceramic protection sheath
Type N with Metal Sheaths – High-temperature design with metal protection sheath
Type N Inserts – Rigid metal tubes commonly used in pocket, thermowell or head assemblies.
Type N Elements – Basic elements for further assembly into sheaths or equipment.

Thermocouple Type N Technical Details

Thermocouple type N is a relativity new type that was made to be an alternative to Type K. It has high stability over time but is more costly than type K at similar temperature ranges. Its sensitivity is about 39 µV/°C, slightly lower compared to type K.

N Type Thermocouples Temperature Range


0 to +1100 °C

Short Term:

-270 to +1300 °C

N Type Thermocouples Material

Nicrosil (84.1%Ni,14.4% Cr,1.4% Si,0.1% Mg)

Nisil (95.6%Ni, 4.4%Si)

N Type Thermocouples Tolerance Details

Tolerance Class 1

-40 to +375 ± 1.5 °C

375 to 1000 ± 0.004*[t]°C

Tolerance Class 2

-40 to +333 ± 2.5 °C

333 to 1200 ± 0.0075*[t]°C

N Type Thermocouples Colour Codes

IEC Colour Code

Type N IEC Cable Colour Coding

BS Colour Code

Type N BS Cable Colour Coding

ANSI Colour Code

Type N ANSI Cable Colour Coding

Contact us

We’ve made Type N Thermocouples for over 25 years and today we are considered the best choice for custom built temperature sensors in the UK. We continue to apply our expertise and invest in the latest technology to provide our customers with the highest quality temperature sensors available.

Contact us with your requirements if you have an existing sensor design or are unsure what you need we’ll be able to find you get the right sensor for your process.

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