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Product

PROFIBUS DP / PA & Process Fieldbus cablesIEC 61158-2 Type A · FISCO100 Ω @ 31.25 kHz · ≤ 44 Ω/km1×2×18 AWG Ex-i Blue / Non-Ex

PROFIBUS PA CableIEC 61158-2 Type A 100 Ω (31.25 kHz) 1×2×18 AWG (0.8–1.5 mm²) PROFIBUS PA process

PROFIBUS PA Cable is the IEC 61158-2 Type A MBP (Manchester Coded, Bus Powered) process-automation fieldbus cable with 100 Ω ± 20 Ω characteristic impedance at 31.25 kHz, ≤ 44 Ω/km DC loop resistance (18 AWG / 0.8–1.5 mm²), ≤ 3.0 dB/km attenuation at 39

Low-EMC design
EMC screen
Oil-resistant
Flame-retardant
Order designation
PROFIBUS PA Non-Ex Black PVC 1×2×18 AWG (0.8 mm²)
Outer Ø ≈
8.0 mm
Copper weight
38 kg/km
Total weight ≈
76 kg/km
Min. bend R (fixed)
64 mm
All sizes (5)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Impedance Z0
100 Ω ± 20 Ω
Measured at 31.25 kHz (MBP)
Conductor size
18 AWG (0.8 mm²)
Also available in 1.0 & 1.5 mm²
Loop resistance
≤ 44 Ω / km
22 Ω/km per core (18 AWG)
Attenuation
≤ 3.0 dB / km
At 39 kHz (≤ 0.30 dB/100m)
FISCO inductance
0.4–1.0 mH/km
L/R & C within IEC 60079-27 FISCO
Max. trunk reach
Up to 1,900 m
Non-Ex 1900 m · Ex-ia FISCO 1000 m

Typical values for this cable type, based on IEC 61158-2 Type A (PROFIBUS PA / MBP / FISCO) — confirmed in the datasheet and quotation for your order.

Application fit

Is PROFIBUS PA right for your machine?

Engineered for chemical, petrochemical, pharmaceutical, oil & gas, and water-treatment process instrumentation connecting pressure, flow, level, and temperature transmitters via DP/PA couplers.

Fixed installation

Suitable

Primary IEC 61158-2 Type A trunk and spur cable for hazardous (RAL 5015 Blue Ex-i) and safe-area (Black) process trays.

Immersion & wet locations

Suitable

Available with galvanized steel wire armour (SWA) or copper wire braid for outdoor pipe racks and underground trenches.

Switchgear & control cabinet wiring

Suitable

8.0 mm OD versions fit FastConnect M12 A-coded field barriers and marshalling junction boxes.

Energy chain / drag chain

Not suitable

Process instrumentation cable for static trays and pipe racks; use PROFIBUS DP Trailing for drag chains.

PROFIBUS DP
Typical machinesChemical & petrochemical refineriesPharmaceutical batch reactorsOil & gas tank farms (ATEX/IECEx Zone 1)Water & wastewater treatment plants

Construction

Layer by layer

One twisted pair of Red (PA+) and Green (PA-) stranded tinned or bare copper conductors (18 AWG / 0.80 mm², 1.0 mm², or 1.5 mm²)

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Stranded copper conductor pair18 AWG (0.80 mm², 7×0.38 mm or 19×0.23 mm) or 1.0 / 1.5 mm² bare or tinned copperIEC 61158-2 Type A
2Polyethylene / foam-skin PE dielectricLow-loss PE / O2YS insulation tuned to Z0 = 100 Ω at 31.25 kHz and C < 60 pF/mIEC 61158-2
3Static screen (Al/PET + drain)Aluminium/polyester tape (100 % coverage) with 0.5 mm² tinned copper drain wireIEC 61158-2 Type A
4EMC tinned copper braidTinned copper wire braid, optical coverage ≥ 80 % (≥ 90 % overall shield coverage)IEC 61158-2
5Process outer sheathHydrocarbon-resistant PVC, PUR, or LSZH in RAL 5015 Sky Blue (Ex-i) or RAL 9005 BlackEN 60079-14 / IEC 60332-3

PROFIBUS PA Ex-i Blue (RAL 5015)

FISCO-compliant intrinsically safe (Ex ia / Ex ib) blue cable for ATEX/IECEx Zone 0, 1 & 2.

PROFIBUS PA Non-Ex Black & SWA Armoured

UV-resistant black PVC/PUR/LSZH or galvanized steel-wire armoured (SWA) process trunk cable.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 61158-2 Type A (PROFIBUS PA / MBP / FISCO). Values for your order are confirmed in the datasheet and quotation.

Electrical

Characteristic impedance Z0
100 Ω ± 20 Ω at 31.25 kHz
Max. DC loop resistance @ 20 °C
≤ 44 Ω/km (18 AWG / 0.8 mm²) · ≤ 24.4 Ω/km
Mutual capacitance @ 1 kHz
≈ 45–55 pF/m (standard limit ≤ 60 nF/km)
Attenuation @ 39 kHz
≤ 3.0 dB/km (≤ 0.30 dB/100m)
FISCO parameters (R', L', C')
R' = 15–150 Ω/km · L' = 0.4–1.0 mH/km · C'
Velocity of propagation & test V
≈ 68 % (0.68 c) · 300 V rating / 1.5 kV AC

Thermal

Operating temp. (fixed)
-40 °C to +80 °C (+105 °C heat-resistant
Installation temperature
-20 °C to +60 °C

Mechanical

Nominal outer diameter
8.0 mm (1×2×18 AWG unarmoured) · 12.4 mm
Min. bending radius
8 × D unarmoured · 12 × D SWA armoured

Resistance

Hydrocarbon, oil & UV resistance
EN 60811-404 · UL Sunlight Resistant
Flame retardancy
IEC 60332-1-2 & IEC 60332-3-24 Cat C

Reference standards

Primary specification
IEC 61158-2 Type A (MBP-IS / PROFIBUS PA)
Intrinsic safety validation
IEC 60079-14 & IEC 60079-27 / IEC 60079-11

Identification

Core colours
Red (PA+) · Green (PA-) — or Blue/Brown per
Outer sheath colour
RAL 5015 Blue (Ex-i) or RAL 9005 Black

Sizes

5 standard configurations (PROFIBUS PA)

Nominal dimensions, copper weights, impedance and transmission parameters for PROFIBUS PA per IEC 61158-2 Type A (PROFIBUS PA / MBP / FISCO).

Dimensions & weights
Order designationConfigurationConductor sizeOuter Ø ≈
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard PROFIBUS PA configurations
PROFIBUS PA Ex-i Blue PVC 1×2×18 AWG (0.8 mm²)1×2×18 AWG (Ex-i Blue PVC)0.80 mm² (18 AWG)8.0387664
PROFIBUS PA Non-Ex Black PVC 1×2×18 AWG (0.8 mm²)1×2×18 AWG (Non-Ex Black PVC)0.80 mm² (18 AWG)8.0387664
PROFIBUS PA Ex-i Blue LSZH 1×2×1.0 mm²1×2×1.0 mm² (Ex-i Blue LSZH)1.0 mm² (17 AWG)8.3438466
PROFIBUS PA Long-Trunk 1×2×1.5 mm² Ex-i Blue1×2×1.5 mm² (Long-Trunk Ex-i)1.5 mm² (16 AWG)9.25410274
PROFIBUS PA SWA Armoured 1×2×18 AWG (0.8 mm²)1×2×18 AWG (SWA Armoured)0.80 mm² (18 AWG)12.43824599
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Outer diameters and weights are nominal factory values subject to ±5 % manufacturing tolerance per IEC 61158-2 Type A (PROFIBUS PA / MBP / FISCO).

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
31.25 kHz impedance Z0 & 39 kHz attenuationZ0 = 100 ± 20 Ω at 31.25 kHz; attenuation ≤ 3.0 dB/km100 % of reels
FISCO R', L', C' verification & 1.5 kV AC testR' ≤ 44 Ω/km, L' = 0.4–1.0 mH/km, C' ≤ 60 nF/km100 % of reels
Sample tests
Capacitive unbalance to screen≤ 2 nF/km per IEC 61158-2 Type APer production batch
Bunched flame test & hydrocarbon resistanceIEC 60332-3-24 Cat C & EN 60811-404Type approval

Inspection certificate

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

Product approvals

IEC 61158-2 Type AIEC 60079-11 / 60079-27 FISCOUL PLTC / ITC / CMG

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX PROFIBUS PA IEC 61158-2 TYPE A
Delivery form
Non-returnable plywood reels or export drums
Standard reel lengths
100 m · 305 m · 500 m · 1000 m
MOQ
100 m (stock variants) · 500 m (custom)
Lead time
2–3 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFPROFIBUS PA Cable – technical datasheet5 sizes · construction, technical data, approvalsXLSXPROFIBUS PA spec data (Excel)All 5 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.

How does PROFIBUS PA cable differ electrically from PROFIBUS DP cable?
PROFIBUS DP operates on RS-485 up to 12 Mbps and uses a 150 Ω (3–20 MHz), 22 AWG (0.64 mm) cable in a violet sheath. PROFIBUS PA uses IEC 61158-2 MBP (Manchester Coded, Bus Powered) transmission at 31.25 kbps and requires a 100 Ω ± 20 Ω (at 31.25 kHz), 18 AWG (0.80 mm², ≤ 44 Ω/km) cable to carry both loop power and data to hazardous-area transmitters.
What is FISCO compliance and why do R', L', and C' matter?
The Fieldbus Intrinsically Safe Concept (FISCO, IEC 60079-11 Annex G / IEC 60079-27) eliminates complex entity calculations in Zone 0/1/2 plants provided the cable stays within strict distributed limits: loop resistance 15–150 Ω/km, inductance 0.4–1.0 mH/km, and capacitance 45–200 nF/km. Our 1×2×18 AWG cable sits squarely inside this window.
When should I specify RAL 5015 Blue vs. RAL 9005 Black PROFIBUS PA cable?
Per EN 60079-14, RAL 5015 Sky Blue outer sheaths identify intrinsically safe (Ex-i) circuits fed by FISCO power supplies or segment barriers in ATEX/IECEx hazardous zones. RAL 9005 Black is specified for non-Ex safe-area process segments and outdoor UV-exposed runs. Each production reel undergoes 100 % characteristic impedance verification, mutual capacitance and DC loop resistance testing, and dielectric spark/withstand inspection before dispatch with an EN 10204 3.1 certificate.
Are PROFIBUS PA and FOUNDATION Fieldbus H1 cables interchangeable?
Electrically, yes: both PROFIBUS PA and FOUNDATION Fieldbus H1 share the identical IEC 61158-2 Type A physical layer (100 Ω at 31.25 kHz, 18 AWG, ≤ 44 Ω/km, ≤ 3.0 dB/km at 39 kHz), differing mainly by plant jacket color conventions (Blue/Black for PA vs. Orange/Yellow/Blue for FF H1).

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