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Product

IEC 60584-3 Type TX thermocouple cableIEC 60584-3 / ANSI MC96.1Cu (+) / CuNi (−) True TXClass 1 (±0.5 °C) · Cryogenic

TX / Type T extension Thermocouple CableTrue Cu / CuNi (Type T) Class 1 (±0.5 °C) cryogenic & pharma thermocouple cable

High-accuracy Type TX thermocouple extension cable built to IEC 60584-3 and ANSI MC96.1 with oxygen-free Copper (+ Cu) and Copper-Nickel (− CuNi) conductors, Class 1 (±0.5 °C) tolerance, Al/PET screen and PVC, LSZH, cryogenic FEP or SWA construction.

Low-EMC design
EMC screen
Flame-retardant
Approved
Order designation
TX-PVC-PiMF 4×2×1.0
Outer Ø ≈
12.8 mm
Total weight ≈
212 kg/km
Min. bend R (fixed)
96 mm
Configuration
4×2×1.0 mm² (7/0.43)
All sizes (15)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Alloy pair
Cu (+) / CuNi
Pure Copper (+) / 55Cu45Ni (−)
EMF tolerance
Class 1: ±0.5 °C
±30 µV · Class 2: ±1.0 °C
Loop resistance
≈ 0.51 Ω/m/pair
at 1.0 mm² (0.018 + 0.49 Ω/m)
IEC colour code
+ Brown / − Wh
Brown outer jacket (or Ex-i Blue)
ANSI colour code
+ Blue / − Red
Blue outer jacket (ASTM E230)
Temp. range
−190…+200 °C
with FEP/PTFE · −25…+100 °C PVC

Typical values for this cable type, based on IEC 60584-3 / ANSI MC96.1 / ASTM E230 — confirmed in the datasheet and quotation for your order.

Application fit

Is TX / Type T extension right for your machine?

The premier thermocouple extension cable for pharmaceutical autoclaves, lyophilisation (freeze-drying), LNG/cryogenic storage, food pasteurisation and laboratory validation where ±0.5 °C accuracy is required.

Fixed installation

Suitable

Available in PVC, LSZH and cleanroom-grade FEP/PTFE for validation autoclaves, cold rooms and process trays.

TBM gantry & advancing tunnel reel

Suitable

SWA armoured execution (TX-XLPE-SWA) protects LNG tank-farm and cold-box thermocouple runs underground.

Offshore platform & shipboard deck trays

Suitable

Both Cu and CuNi conductors are highly resistant to moisture and sub-zero condensation.

Energy chain / drag chain

Not suitable

Designed for fixed process routing and thermal validation harnesses, not high-speed drag chains.

PUR Drag-Chain Control Cable
Typical machinesPharmaceutical Autoclaves & LyophilisationLNG Terminals, Air Separation & CryogenicsFood, Beverage & Cold-Chain MonitoringClinical, Biomedical & Blood-Bank FreezersAerospace Environmental Test Chambers

Construction

Layer by layer

Shown: TX-PVC-PiMF 4×2×1.0 mm² (IEC 60584-3) with 7-wire stranded Cu (+) and CuNi (−) conductors, Brown (+) / White (−) numbered insulation, individual & collective Al/PET screens and Brown RAL 8003 outer sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1True Type TX thermocouple alloy conductorsPositive (+): High-purity oxygen-free Copper (Cu) · Negative (−): Copper-Nickel (CuNi 55/45), both non-magneticAchieves ±0.5 °C Class 1 accuracy with high corrosion resistance in damp/cryogenic duty
2Colour-coded core insulationPVC, XLPE, or cryogenic/autoclave FEP/PTFE (IEC: + Brown / − White; ANSI: + Blue / − Red)Maintains high dielectric strength from −190 °C LN₂ vapour to +135 °C steam sterilisation
3Individual & collective Al/PET screensAluminium/PET laminated tape + 0.5 mm² tinned copper drain wire (OS or PiMF+OS)Protects ~42.8 µV/°C signals against VFD and compressor interference
4Optional SWA or tinned copper braidUnarmoured, tinned copper braid screen, or Galvanised Steel Wire Armour (SWA)Mechanical protection for LNG pipe racks or autoclave doors
5Outer jacket (IEC Brown, ANSI Blue or Ex-i Blue)Flame-retardant PVC, Low-Smoke Zero-Halogen (LSZH), or fluoropolymer FEP/PTFEIEC 60332-1-2 / IEC 60332-3-24 flame retardant

TX — IEC 60584-3 (Brown/White)

Positive (+) Brown, Negative (−) White, Outer Jacket Brown

TX — ANSI MC96.1 (Blue/Red)

Positive (+) Blue, Negative (−) Red, Outer Jacket Blue per ASTM E230

TX-FEP (Cryogenic / Autoclave)

Extruded FEP/PTFE fluoropolymer rated from −190 °C (cryogenic) to +200 °C (steam autoclave)

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 60584-3 / ANSI MC96.1 / ASTM E230. Values for your order are confirmed in the datasheet and quotation.

Electrical

Positive conductor (+)
High-purity Copper (Cu, non-magnetic, ~1.72 µΩ·cm)
Negative conductor (−)
Copper-Nickel (CuNi ~55 % Cu / 45 % Ni, non-magnetic, ~49 µΩ·cm)
Tolerance Class 1 (IEC 60584-3)
±0.5 °C (±30 µV) over −25 °C to +100 °C junction range
Tolerance Class 2 (IEC 60584-3)
±1.0 °C (±60 µV) over −25 °C to +100 °C junction range
Nominal Seebeck coefficient
≈ 42.8 µV/°C (0 to +100 °C) · loop R ≈ 0.51 Ω/m at 1.0 mm²

Thermal

Standard IEC 60584-3 calibration range
−25 °C to +100 °C (extended −190 °C to +200 °C on FEP sensor-grade)
Insulation rating (by jacket type)
−25…+100 °C (PVC) · −40…+90 °C (XLPE/LSZH) · −190…+200 °C (FEP)

Mechanical

Conductor stranding
0.22 mm² (7/0.20) · 0.5 mm² (7/0.30) · 1.0 mm² (7/0.43) · 1.5 mm² (7/0.53)
Min. bending radius
7.5 × OD (unarmoured) · 10 × OD (SWA armoured)

Resistance

Flame retardance
IEC 60332-1-2 & IEC 60332-3-24 Cat C (UL 94 V-0 on FEP)
Moisture & steam resistance
Non-hygroscopic FEP/PTFE withstands saturated CIP/SIP steam

Reference standards

Thermocouple cable standard
IEC 60584-3, ANSI/ISA MC96.1 (ASTM E230) & DIN 43722
Cable construction standard
BS EN 50288-7 / BS 5308

Identification

IEC 60584-3 colour code
(+) Brown · (−) White · Outer sheath: Brown (or Blue Ex-i)
ANSI MC96.1 colour code
(+) Blue · (−) Red · Outer sheath: Blue
Customs tariff (HS)
8544.49

Sizes

15 standard TX / Type T extension thermocouple cable sizes

Includes PVC process cables, −190…+200 °C FEP cryogenic/autoclave cables, and SWA armoured LNG tank-farm cables.

Dimensions, construction & weights
Order designationConfigurationInsulation / SheathTemp. rangeOuter Ø ≈
mm		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
TX PVC / PVC Screened Process Cables (−25…+100 °C)
TX-PVC-OS 1×2×0.51×2×0.5 mm² (7/0.30)PVC / PVC (OS)−25…+100 °C5.64442
TX-PVC-PiMF 2×2×0.52×2×0.5 mm² (7/0.30)PVC / PVC (PiMF+OS)−25…+100 °C8.68464
TX-PVC-PiMF 4×2×0.54×2×0.5 mm² (7/0.30)PVC / PVC (PiMF+OS)−25…+100 °C10.814281
TX-PVC-PiMF 8×2×0.58×2×0.5 mm² (7/0.30)PVC / PVC (PiMF+OS)−25…+100 °C14.1246106
TX-PVC-PiMF 12×2×0.512×2×0.5 mm² (7/0.30)PVC / PVC (PiMF+OS)−25…+100 °C16.9348127
TX-PVC-OS 1×2×1.01×2×1.0 mm² (7/0.43)PVC / PVC (OS)−25…+100 °C6.76850
TX-PVC-PiMF 4×2×1.04×2×1.0 mm² (7/0.43)PVC / PVC (PiMF+OS)−25…+100 °C12.821296
TX-PVC-OS 1×2×1.51×2×1.5 mm² (7/0.53)PVC / PVC (OS)−25…+100 °C7.59256
TX-PVC-PiMF 4×2×1.54×2×1.5 mm² (7/0.53)PVC / PVC (PiMF+OS)−25…+100 °C14.3286107
TX FEP / FEP Cryogenic & Steam-Autoclave Cables (−190…+200 °C)
TX-FEP-OS 1×2×0.221×2×0.22 mm² (7/0.20)FEP / FEP (OS)−190…+200 °C3.62227
TX-FEP-OS 1×2×0.51×2×0.5 mm² (7/0.30)FEP / FEP (OS)−190…+200 °C4.63834
TX-FEP-PiMF 4×2×0.54×2×0.5 mm² (7/0.30)FEP / FEP (PiMF+OS)−190…+200 °C9.212869
TX-FEP-OS 1×2×1.01×2×1.0 mm² (7/0.43)FEP / FEP (OS)−190…+200 °C5.65842
TX XLPE / LSZH / SWA Armoured LNG & Cold-Box Cables (−40…+90 °C)
TX-XLPE-SWA 1×2×1.51×2×1.5 mm² (7/0.53)XLPE / SWA / LSZH−40…+90 °C12.1298121
TX-XLPE-SWA 4×2×1.54×2×1.5 mm² (7/0.53)XLPE / SWA / LSZH−40…+90 °C19.8745198
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Specify 'IEC' (+ Brown / − White) or 'ANSI' (+ Blue / − Red) colour coding and Class 1 (±0.5 °C) tolerance when ordering.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
Thermoelectric EMF calibration test (IEC 60584-3 Class 1)EMF deviation within ±0.5 °C (±30 µV) at +100 °C reference temperatureEvery alloy batch
1500 V / 2000 V AC dielectric & continuity test1 min AC withstand test without breakdownEvery manufactured drum

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

IEC 60584-3 Class 1 (±0.5 °C) CertifiedANSI/ISA MC96.1 & ASTM E230 Special LimitsCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX TX TYPE T EXTENSION <size> IEC 60584-3 CLASS 1 CE
Delivery form
Non-returnable fumigated wooden drums
Standard lengths
500 m · 1000 m standard drums (cut lengths on request)
MOQ
500 m (stock sizes) · 1000 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFTX / Type T extension Thermocouple Cable – technical datasheet15 sizes · construction, technical data, approvalsXLSXTX / Type T extension spec data (Excel)All 15 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

Why is Type TX preferred over Type KX or JX for cryogenic, LNG, and pharmaceutical validation?
Type TX uses high-purity oxygen-free Copper (+ Cu) and Copper-Nickel (− CuNi), which can be refined to far higher metallurgical homogeneity than Nickel-Chromium or Iron. As a result, IEC 60584-3 Class 1 Type TX achieves a ±0.5 °C tolerance (three times tighter than the ±1.5 °C tolerance of KX and JX) and resists rusting in condensing sub-zero and steam environments.
Can FEP-insulated Type TX cable be used directly as a validation thermocouple sensor inside an autoclave or freezer?
Yes. Because TX uses the exact same Cu/CuNi alloys as a Type T sensor, our sensor-grade Class 1 TX-FEP cable (−190 °C to +200 °C) is widely welded at the tip for pharmaceutical steam-autoclave validation and cryogenic freezer mapping.
How do I distinguish the Cu (+) and CuNi (−) conductors when stripping TX cable?
The Positive (+) conductor is reddish-orange pure copper (Brown insulation in IEC, Blue in ANSI) with very low electrical resistance, whereas the Negative (−) CuNi conductor is silvery-white (White insulation in IEC, Red in ANSI) with ~28 times higher resistance.
How should the screen and drain wire of TX / Type T extension be earthed in instrumentation and Ex-i loops?
To prevent circulating 50/60 Hz ground-loop currents from coupling into millivolt or 4–20 mA signals, the Al/PET screen and tinned copper drain wire of TX / Type T extension should be bonded to the clean instrumentation earth bar at one end only (typically in the control/marshalling cabinet) and insulated against chassis contact at the field transmitter or junction box, in accordance with IEC 60079-14 and EN 50288-7.

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TX / Type T extension Thermocouple Cable

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