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Product

IEC 60584-3 Type KCA compensating cableIEC 60584-3 Type KCAFe (+) / CuNi (−) Compensating0…+200 °C Junction Range

KCA Thermocouple Compensating CableFe / CuNi compensating cable for Type K thermocouples with 0…+200 °C junction range

Extended-range Type KCA thermocouple compensating cable built to IEC 60584-3 and DIN 43722 using matched Iron (+ Fe) and Copper-Nickel (− CuNi) conductors calibrated to match the Type K (NiCr-NiAl) EMF slope across a 0 °C to +200 °C junction range.

Low-EMC design
EMC screen
Flame-retardant
Oil-resistant
Order designation
KCA-PVC-PiMF 4×2×1.5
Outer Ø ≈
14.3 mm
Total weight ≈
286 kg/km
Min. bend R (fixed)
107 mm
Configuration
4×2×1.5 mm² (7/0.53)
All sizes (14)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Compensates for
Type K (NiCr-Ni)
extended-range compensating KCA
Alloy pair
Fe (+) / CuNi
Iron (+) / 275-grade CuNi (−)
Junction range
0 °C to +200 °C
double the +100 °C range of KCB
EMF tolerance
Class 2: ±2.5 °C
±100 µV (measured at 900 °C)
Loop resistance
≈ 0.45 Ω/m/pair
at 1.0 mm² (0.10 + 0.35 Ω/m)
IEC colour code
+ Green / − Wh
Green outer jacket (or Ex-i Blue)

Typical values for this cable type, based on IEC 60584-3 / DIN 43722 / BS EN 50288-7 — confirmed in the datasheet and quotation for your order.

Application fit

Is KCA right for your machine?

Engineered for long multi-pair Type K thermocouple trunks in steelworks, glass plants, cement kilns and refineries where junction boxes around furnace shells reach up to +150…+200 °C (exceeding the +100 °C limit of KCB).

Fixed installation

Suitable

Supplied in 105 °C HR-PVC, XLPE/LSZH, silicone/FEP (+200 °C) and SWA armoured constructions.

TBM gantry & advancing tunnel reel

Suitable

SWA armoured execution (KCA-XLPE-SWA) protects underground refinery and steel-mill trunk cables.

Offshore platform & shipboard deck trays

Suitable

UV-stabilised PVC or PE/LSZH outer sheaths protect multi-pair runs on outdoor pipe racks.

Typical machinesSteel Mills, Blast Furnaces & Continuous CastersCement Rotary Kilns & Clinker CoolersGlass Melting Furnaces & Float LinesPetrochemical Fired Heaters & BoilersPower Station Flue-Gas & Steam Piping

Construction

Layer by layer

Shown: KCA-PVC-PiMF 4×2×1.0 mm² (IEC 60584-3) with 7-wire stranded Fe (+) and CuNi (−) compensating conductors, Green (+) / White (−) numbered insulation, individual & collective Al/PET screens and Green RAL 6018 outer sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Matched Type KCA compensating alloy conductorsPositive (+): Thermoelectric Iron (Fe, magnetic) · Negative (−): Calibrated Copper-Nickel (CuNi 275 alloy), 7-wire strandedReplicates the ~40.6 µV/°C Type K EMF curve from 0 °C to +200 °C with < 50 % of the loop resistance of KX
2Colour-coded core insulation105 °C HR-PVC, +90 °C XLPE, or +200 °C FEP/Silicone (IEC: + Green / − White; DIN 43722: + Red / − Green)Maintains insulation resistance up to +200 °C at hot furnace heads
3Individual & collective Al/PET screensAluminium/PET laminated tape + 0.5 mm² tinned copper drain wire (OS or PiMF+OS)100 % electrostatic shielding
4Optional SWA or steel wire braidUnarmoured, galvanised steel wire braid, or Galvanised Steel Wire Armour (SWA)Mechanical protection in heavy steel and cement plants
5Outer jacket (Green RAL 6018 or Blue RAL 5015 Ex-i)Flame-retardant PVC, Low-Smoke Zero-Halogen (LSZH), or fluoropolymer FEPIEC 60332-1-2 / IEC 60332-3-24 flame retardant

KCA — IEC 60584-3 (Green/White)

Positive (+) Green, Negative (−) White, Outer Jacket Green (RAL 6018)

KCA — DIN 43722 Legacy (Red/Green)

Positive (+) Red, Negative (−) Green, Outer Jacket Green for legacy German steel plants

KCA-FEP (0…+200 °C Hot Junction)

FEP fluoropolymer insulation allowing full use of KCA's +200 °C calibration ceiling

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 60584-3 / DIN 43722 / BS EN 50288-7. Values for your order are confirmed in the datasheet and quotation.

Electrical

Compensated thermocouple type
Type K (NiCr-NiAl) per IEC 60584-1
Positive conductor (+)
Thermoelectric Iron (Fe, magnetic, ~10 µΩ·cm)
Negative conductor (−)
Calibrated Copper-Nickel (CuNi 275 alloy, ~35 µΩ·cm)
Tolerance Class 2 (IEC 60584-3)
±2.5 °C (±100 µV) over 0 °C to +200 °C junction range
Loop resistance @ 20 °C
≈ 0.90 Ω/m (0.5 mm²) · 0.45 Ω/m (1.0 mm²) · 0.30 Ω/m (1.5 mm²)

Thermal

Permissible junction temperature range
0 °C to +200 °C (requires FEP/Silicone above +105 °C)
Insulation rating (by jacket type)
−25…+105 °C (HR-PVC) · −40…+90 °C (XLPE/LSZH) · −60…+200 °C (FEP)

Mechanical

Conductor stranding
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
Oil & chemical resistance
EN 50290-2-22 oil-resistant PVC or fluoropolymer FEP

Reference standards

Thermocouple cable standard
IEC 60584-3 & DIN 43722
Cable construction standard
BS EN 50288-7 / BS 5308

Identification

IEC 60584-3 colour code
(+) Green · (−) White · Outer sheath: Green (or Blue Ex-i)
DIN 43722 colour code
(+) Red · (−) Green · Outer sheath: Green
Customs tariff (HS)
8544.49

Sizes

14 standard KCA Type K compensating cable sizes

Single-pair and multi-pair (1P to 24P) HR-PVC, FEP (+200 °C) and SWA armoured constructions.

Dimensions, construction & weights
Order designationConfigurationInsulation / SheathJunction rangeOuter Ø ≈
mm		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
KCA Heat-Resistant PVC / PVC Screened (0…+105 °C)
KCA-PVC-OS 1×2×0.51×2×0.5 mm² (7/0.30)HR-PVC / PVC (OS)0…+105 °C5.64442
KCA-PVC-PiMF 2×2×0.52×2×0.5 mm² (7/0.30)HR-PVC / PVC (PiMF+OS)0…+105 °C8.68464
KCA-PVC-PiMF 4×2×0.54×2×0.5 mm² (7/0.30)HR-PVC / PVC (PiMF+OS)0…+105 °C10.814281
KCA-PVC-PiMF 8×2×0.58×2×0.5 mm² (7/0.30)HR-PVC / PVC (PiMF+OS)0…+105 °C14.1246106
KCA-PVC-PiMF 12×2×0.512×2×0.5 mm² (7/0.30)HR-PVC / PVC (PiMF+OS)0…+105 °C16.9348127
KCA-PVC-OS 1×2×1.01×2×1.0 mm² (7/0.43)HR-PVC / PVC (OS)0…+105 °C6.76850
KCA-PVC-PiMF 4×2×1.04×2×1.0 mm² (7/0.43)HR-PVC / PVC (PiMF+OS)0…+105 °C12.821296
KCA-PVC-OS 1×2×1.51×2×1.5 mm² (7/0.53)HR-PVC / PVC (OS)0…+105 °C7.59256
KCA-PVC-PiMF 4×2×1.54×2×1.5 mm² (7/0.53)HR-PVC / PVC (PiMF+OS)0…+105 °C14.3286107
KCA-PVC-PiMF 8×2×1.58×2×1.5 mm² (7/0.53)HR-PVC / PVC (PiMF+OS)0…+105 °C19.2515144
KCA High-Temperature FEP / FEP Screened (0…+200 °C Full Range)
KCA-FEP-OS 1×2×1.01×2×1.0 mm² (7/0.43)FEP / FEP (OS)0…+200 °C5.65842
KCA-FEP-PiMF 4×2×1.04×2×1.0 mm² (7/0.43)FEP / FEP (PiMF+OS)0…+200 °C11.218884
KCA XLPE / LSZH / SWA Armoured Direct-Burial (0…+90 °C)
KCA-XLPE-SWA 1×2×1.51×2×1.5 mm² (7/0.53)XLPE / SWA / LSZH0…+90 °C12.1298121
KCA-XLPE-SWA 4×2×1.54×2×1.5 mm² (7/0.53)XLPE / SWA / LSZH0…+90 °C19.8745198
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Specify 'IEC' (+ Green / − White) or 'DIN 43722' (+ Red / − Green) colour coding 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 2)EMF deviation within ±2.5 °C (±100 µV) over 0…+200 °C junction rangeEvery 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 2 (KCA) CertifiedDIN 43722 & BS EN 50288-7 CompliantCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX KCA TYPE K COMPENSATING <size> IEC 60584-3 CLASS 2 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

PDFKCA Thermocouple Compensating Cable – technical datasheet14 sizes · construction, technical data, approvalsXLSXKCA spec data (Excel)All 14 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.

What is the difference between KCA and KCB compensating cables?
Both KCA and KCB are compensating cables for Type K thermocouples, but they use different conductor alloys and cover different transition-head temperature ranges. KCA uses Iron (+ Fe) and Copper-Nickel (− CuNi 275) and is calibrated from 0 °C to +200 °C. KCB uses Copper (+ Cu) and Copper-Nickel (− CuNi) and is calibrated only from 0 °C to +100 °C. Use KCA when furnace connection heads exceed +100 °C.
Which conductor in KCA is magnetic?
In KCA, the Positive (+ Fe, Green in IEC) conductor is strongly magnetic because it is thermoelectric iron, whereas the Negative (− CuNi, White in IEC) conductor is non-magnetic. Note that this is the opposite of true KX cable, where the Negative (− NiAl) leg is magnetic.
Why choose KCA over true KX extension cable on long trunk runs?
KCA reduces Nickel-Chromium alloy cost on large 12-pair or 24-pair trunk cables and cuts loop resistance from ~1.00 Ω/m to ~0.45 Ω/m at 1.0 mm², while still supporting +200 °C junction boxes.
How should the screen and drain wire of KCA 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 KCA 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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KCA Thermocouple Compensating Cable

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