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Product

ISO 6722 High-Temperature & Specialty Polymer Automotive Wires (4Y / 5Y / 6Y / 7Y / 9Y)60 V DC ISO 6722-1 Class E / FFEP (6Y) -65 to +180/+200 °CMelt-Extruded Long Spools

FLR6Y-A / FLR6Y-B FLR6Y Automotive Wire60 V DC ISO 6722-1 Class E/F (-65 to +180 / +200 °C) melt-extruded FEP (6Y) fluoropolymer

FLR6Y-A and FLR6Y-B are ISO 6722-1 Class E (+180 °C with tinned copper) and Class F (+200 °C with silver- or nickel-plated copper) reduced-wall automotive wires insulated with fluorinated ethylene propylene ('6Y' = FEP). Unlike batch paste-extruded PTFE, FEP i

Class E/F +180/+200 °C FEP (6Y)
Zero Oil & Fuel Permeation
-65 °C Cold Winding Rated
ISO 6722-1 / LV 112
Order designation
FLR6Y-A 0.75 mm²
Max. OD
1.85 mm
Copper mass
7.3 kg/km
Total mass ≈
11.0 kg/km
Min. bend R
7.4 mm
All sizes (8)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Rated voltage
60 V DC / 25 V A
ISO 6722-1 primary & sensor
Thermal class
Class E (+180) /
-65 to +180 °C (Sn) / +200 °C (Ag/Ni)
Insulation
6Y FEP fluoropol
Melt-extruded non-porous wall
Conductor
Tinned / Ag / Ni
Type A concentric & Type B bunched
Size range
0.22 to 4.00 mm²
Reduced-wall FLR dimensions
Min. bend radius
4 × wire OD
High-temp engine & gearbox looms

Typical values for this cable type, based on ISO 6722-1 Class E/F / DIN 72551 / LV 112 — confirmed in the datasheet and quotation for your order.

Application fit

Is FLR6Y-A / FLR6Y-B right for your machine?

Specified for automatic transmission internal valve-body wiring, EGR and turbo actuators, DPF/SCR sensor harnesses, oil-level/temperature probes and EV stator temperature sensor leads requiring +180/+200 °C rating in continuous long-spool runs.

Furnace, kiln & high-temp zone

Suitable

Rated for continuous operation at +180 °C (Class E, tinned Cu) or +200 °C (Class F, silver/nickel-plated Cu).

Fixed installation

Suitable

Non-porous melt-extruded FEP prevents hot ATF or engine oil wicking along the conductor.

Switchgear & control cabinet wiring

Suitable

Continuous multi-kilometre extrusion eliminates splice waste on high-speed cut-and-strip lines.

Motorised monospiral reel

Not suitable

Engineered for fixed high-temperature automotive harnesses and sensor assemblies.

FLR7Y +150 °C ETFE wire
Typical machinesAutomatic & EV gearbox internalsExhaust & turbocharger sensorsOil-bath mechatronic modulesEV traction motor RTD/NTC leadsHeavy-duty diesel engine harnesses

Construction

Layer by layer

Tinned (Cu/Sn, +180 °C), silver-plated (Cu/Ag, +200 °C) or bare/nickel-plated copper (Type A concentric or Type B bunched) + melt-extruded reduced-wall FEP fluoropolymer insulation (6Y, -65 to +180/+200 °C).

123
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Tinned or silver/nickel-plated copperType A concentric (7/19 strands) or Type B bunched copper with Sn (+180 °C) or Ag/Ni (+200 °C) platingISO 6722-1
2Fluorinated ethylene propylene (6Y / FEP)Melt-extruded reduced-wall FEP fluoropolymer (-65 °C to +180/+200 °C, LOI >95 %, non-porous)DIN 72551
3Smooth chemical-inert FEP surfaceGlossy non-wetting fluoropolymer outer surface with base colour and extruded tracer stripesISO 6722-1

FLR6Y-A Cu/Sn (Class E, -65 to +180 °C)

Concentric tinned copper conductor with FEP reduced wall for transmission internals and +180 °C engine sensors.

FLR6Y-A Cu/Ag or Cu/Ni (Class F, -65 to +200 °C)

Concentric silver- or nickel-plated copper conductor with FEP reduced wall for +200 °C exhaust and turbocharger looms.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on ISO 6722-1 Class E/F / DIN 72551 / LV 112. Values for your order are confirmed in the datasheet and quotation.

Electrical

Nominal voltage
60 V DC / 25 V AC
Wet dielectric test
3.0 kV AC rms for 5 min (≥0.5 mm²) · 1.0 kV (<0.5 mm²)
In-line spark test
5.0 kV AC rms

Thermal

Thermal class
ISO 6722-1 Class E (+180 °C, Sn-Cu) / Class F (+200 °C, Ag/Ni-Cu)
Short-term heat & melt point
240 h at +205/+225 °C · FEP crystalline melt point ≈ +260 °C
Cold winding test
-65 °C for 4 hours on mandrel without cracking

Mechanical

Min. wall thickness
0.20 mm (0.22–0.5 mm²) · 0.24 mm (0.75–1.5 mm²) · 0.28 mm (2.5 mm²)
Fluid & gas impermeability
True melt-extruded wall blocks capillary oil/fuel vapour migration

Resistance

Flammability
LOI >95 % — non-flammable & self-extinguishing immediately upon flame removal
Fluid immunity
Resistant to hot synthetic gear oils, ATF, diesel, gasoline, brake fluid, AdBlue & acids

Reference standards

Reference standards
ISO 6722-1 Class E / Class F, DIN 72551 & VDA LV 112
Environmental compliance
Halogen-acid-free service, RoHS 3 & ELV compliant

Identification

Code breakdown
FL = automotive · R = reduced wall · 6Y = FEP (fluorinated ethylene propylene)
Colour code
DIN 72551 base colours + co-extruded tracer stripes

Sizes

8 standard sizes (FLR6Y-A / FLR6Y-B)

Nominal dimensions, wall thickness, copper mass and electrical parameters for FLR6Y-A / FLR6Y-B per ISO 6722-1 Class E/F / DIN 72551 / LV 112.

Dimensions & masses
DesignationType & Size mm²Strands × Ø / Wall mmMax. OD
mm		Copper
kg/km		Total mass ≈
kg/km		Min. bend R
mm		Enquiry
FLR6Y-A / FLR6Y-B size range
FLR6Y-A 0.22 mm²0.22 mm² Type A7×0.21 · 0.20 mm1.152.13.74.6
FLR6Y-A 0.35 mm²0.35 mm² Type A19×0.16 · 0.20 mm1.303.45.35.2
FLR6Y-A 0.50 mm²0.50 mm² Type A19×0.19 · 0.22 mm1.554.97.66.2
FLR6Y-A 0.75 mm²0.75 mm² Type A19×0.23 · 0.24 mm1.857.311.07.4
FLR6Y-A 1.00 mm²1.00 mm² Type A19×0.26 · 0.24 mm2.059.714.28.2
FLR6Y-A 1.50 mm²1.50 mm² Type A19×0.32 · 0.24 mm2.3514.620.29.4
FLR6Y-A 2.50 mm²2.50 mm² Type A19×0.41 · 0.28 mm2.9524.333.011.8
FLR6Y-B 4.00 mm²4.00 mm² Type B56×0.31 · 0.32 mm3.6538.851.014.6
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Dimensions and maximum overall diameters conform to ISO 6722-1 Class E/F / DIN 72551 / LV 112.

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
3.0–5.0 kV AC spark test & DC conductor resistanceZero pinholes; resistance per ISO 6722-1100 % of spools
Sample tests
-65 °C cold mandrel winding & +180/+200 °C heat shockZero cracking or melt flowEvery batch
3000-hour Class E/F thermal endurance & hot ATF immersionCertified to ISO 6722-1 Class E/FType qualification

Inspection certificate

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

Product approvals

ISO 6722-1 Class E (+180 °C) / Class F (+200 °C)DIN 72551 (6Y FEP)VDA LV 112RoHS 3 & ELV Compliant

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX FLR6Y-A [size]mm2 FEP CLASS E/F 180C/200C ISO 6722-1 [lot/spool]
Delivery form
Non-returnable plastic spools, barrel packs or wooden drums
Standard spool lengths
500 m · 1000 m · 2000 m spools (or barrel packs)
MOQ
500 m (stock colours) · 2000 m (striped/custom)
Lead time
2–3 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFFLR6Y-A / FLR6Y-B FLR6Y Automotive Wire – technical datasheet8 sizes · construction, technical data, approvalsXLSXFLR6Y-A / FLR6Y-B spec data (Excel)All 8 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 choose FLR6Y (FEP) over FLR5Y (PTFE) when both are rated up to +200 °C?
PTFE (5Y) must be paste-extruded in finite billet batches, leaving short spool lengths. FEP (6Y) is melt-extrudable like a conventional thermoplastic, enabling multi-kilometre continuous spools with co-extruded colour stripes, lower processing cost and a completely non-porous gas-tight wall.
Why is FLR6Y-A with tinned copper rated to +180 °C (Class E) while silver/nickel-plated copper is rated to +200 °C (Class F)?
FEP polymer itself withstands +200 °C continuously, but tin plating on copper begins to form brittle copper-tin intermetallics above +180 °C. Pairing FEP with tinned copper yields a cost-effective Class E (+180 °C) wire; pairing it with silver- or nickel-plated copper unlocks the full Class F (+200 °C) rating.
Why is FLR6Y widely used inside automatic transmissions and wet dual-clutch gearboxes?
Hot synthetic ATF oils (+140 to +175 °C) contain aggressive friction modifiers and extreme-pressure additives that attack elastomers and polyolefins. Melt-extruded FEP is 100 % chemically inert to hot ATF and prevents oil from creeping through the insulation wall.
How does FLR6Y compare mechanically with FLR7Y (ETFE)?
FLR6Y (FEP) has a higher temperature rating (+180/+200 °C vs +150 °C for ETFE) and lower dielectric constant, whereas FLR7Y (ETFE) is harder and has higher mechanical scrape and cut-through resistance.

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FLR6Y-A / FLR6Y-B FLR6Y Automotive Wire

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