Type T Fiberglass Insulated Thermocouple Cable
Type T is the precision choice for low and sub-zero temperatures. Its copper positive leg gives the tightest extension-cable tolerance of the base-metal types, which is why it is used in cold rooms, pharma stability chambers, laboratories and food processing.
In the fiber/fiber construction each conductor is wrapped in braided, varnished glass yarn and the pair is braided again overall. It handles radiant heat near furnace walls and boiler casings far better than PVC, while staying light and easy to route through cable trays.
Our Type T fiberglass cable uses Copper / Constantan (Cu-Ni) conductors in TX extension grade. Fiberglass insulation, typically up to 250°C continuous (higher constructions on request). It follows the Brown (+) / White (−), brown sheath colour code under IEC 60584-3, with ANSI MC96.1 colours (Blue (+) / Red (−), blue sheath) available for export or imported instruments. Standard sizes are 7/36, 3/26, 3/28, 3/22, 1/24, 1/22, 0.5, 1, 1.5 and 2 sq mm, in single-pair or multi-pair construction.
Accuracy depends on using cable of the same type as the sensor and connecting it with the right polarity. A Type T sensor needs Type T extension or compensating cable all the way to the instrument; copper wire or cable of a different type adds an error wherever the junction is warm. Typical tolerance: TX Class 1 ±0.5°C, Class 2 ±1.0°C (IEC 60584-3).
When ordering Type T fiberglass cable, tell us the conductor size, number of pairs, total length, the colour standard your panel follows and the highest temperature the cable route will see. If only part of the route is hot, we can suggest a hot-zone section in a heat-resistant construction joined to a lower-cost cable for the cool run, which keeps accuracy while reducing cost.
Rewari Cable Industries manufactures this cable at our Rewari factory and supplies it in drums or cut lengths with a Material Test Certificate for each batch, covering conductor resistance, insulation resistance and spark test. Use the thermocouple cable configurator to pick size, insulation and length, or send your drawing on WhatsApp for a quote.
Specifications
| Thermocouple type | Type T |
|---|---|
| Conductor alloys | Copper / Constantan (Cu-Ni) |
| Grade | TX extension grade |
| Insulation system | Fiber / Fiber |
| Temperature rating (cable) | Fiberglass insulation, typically up to 250°C continuous (higher constructions on request) |
| Sensor range (reference) | Sensor −200 to 350°C |
| Colour code IEC 60584-3 | Brown (+) / White (−), brown sheath |
| Colour code ANSI MC96.1 | Blue (+) / Red (−), blue sheath |
| Tolerance (typical) | TX Class 1 ±0.5°C, Class 2 ±1.0°C (IEC 60584-3) |
| Sizes | 7/36, 3/26, 3/28, 3/22, 1/24, 1/22, 0.5, 1, 1.5 and 2 sq mm |
| Construction | Single pair or multi-pair; drums or cut lengths |
| Documents | Batch Material Test Certificate (MTC) |
Typical values. Your TDS and batch MTC are the binding documents.
Typical applications
- Cold storage and freezers
- Pharma stability and validation
- Food processing and laboratories
- Hot zones near furnace and boiler walls
Frequently asked questions
What is the colour code of Type T thermocouple cable?
Under IEC 60584-3 (used in India and Europe) it is Brown (+) / White (−), brown sheath. Under ANSI MC96.1 it is Blue (+) / Red (−), blue sheath. Tell us which standard your instruments follow.
Is fiberglass thermocouple cable suitable near a furnace wall?
Yes, that is its main use. Fiber/fiber cable is rated for much higher surface temperature than PVC. It is not waterproof, so for wet or oily areas choose an SS-braided or PTFE version.
Can I use K-type or copper cable with a Type T sensor?
No. Only Type T extension or compensating cable keeps the reading correct. Other cable creates an error wherever its terminals are warmer than the instrument.
Do you supply a test certificate?
Yes. Every batch ships with a Material Test Certificate covering conductor resistance, insulation resistance and spark test.