1 / 5

Product

ISO 6722 High-Temperature & Specialty Polymer Automotive Wires (4Y / 5Y / 6Y / 7Y / 9Y)60 V DC ISO 6722-1 Class CPolyamide 4Y (PA11 / PA12)Extreme Scrape & Fuel Immersion

FLR4Y-A FLR4Y Automotive Wire60 V DC ISO 6722-1 Class C (-40 to +125 °C) polyamide (4Y / PA11/PA12) extreme-abrasion &

FLR4Y-A is an ISO 6722-1 Class C (-40 °C to +125 °C) reduced-wall automotive primary wire insulated with tough thermoplastic polyamide ('4Y' = PA11 / PA12 nylon). Offering 5 to 10 times higher needle-scrape abrasion resistance than PVC and near-zero swelling i

In-Tank Fuel & ATF Resistant
Class C +125 °C Polyamide (4Y)
ISO 6722-1 / DIN 72551
Order designation
FLR4Y-A 0.75 mm²
Max. OD
1.85 mm
Copper mass
7.2 kg/km
Total mass ≈
8.7 kg/km
Min. bend R
9.2 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 vehicle primary
Thermal class
Class C (+125 °C
-40 °C to +125 °C (3000 h)
Insulation
Polyamide 4Y (PA
Halogen-free engineering nylon
Key strength
Scrape & fuel pr
Ultra-low friction & zero fuel swell
Size range
0.22 to 4.00 mm²
Type A concentric (Type B option)
Min. bend radius
5 × wire OD
Stiff abrasion-resistant routing

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

Application fit

Is FLR4Y-A right for your machine?

Specified for fuel-pump module wiring, automatic transmission valve-body harnesses, ABS/wheel-speed sensor leads, seat-frame mechanisms and un-taped bracket crossings requiring extreme cut-through and hydrocarbon resistance.

Fixed installation

Suitable

Slides effortlessly through tight conduits and metal brackets without chafing through.

Switchgear & control cabinet wiring

Suitable

Concentric Type A conductor and hard PA12 wall feed smoothly through automated harness machines.

Motor stator, traction & converter leads

Suitable

PA11/PA12 resists continuous immersion in gasoline, diesel and ATF oils inside fuel/gearbox housings.

Furnace, kiln & high-temp zone

Not suitable

Rated to +125 °C; for +150 °C to +200 °C transmission/exhaust zones specify FLR7Y (ETFE) or FLR6Y (FEP).

FLR7Y +150 °C ETFE wire
Typical machinesFuel-tank pump & sender unitsAutomatic & DCT gearbox harnessesSeat-track & mechanism wiringChassis & ABS sensor jumpersHeavy truck air-brake & fuel lines

Construction

Layer by layer

Symmetrical concentric bare or tinned copper conductor (Type A) + reduced-wall thermoplastic polyamide PA11/PA12 insulation (4Y, -40 to +125 °C, halogen-free).

123
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Cu-ETP1 concentric copper (Type A)7- or 19-strand symmetrical concentric bare (or tinned) annealed copper per ISO 6722-1ISO 6722-1
2Polyamide PA11 / PA12 insulation (4Y)Halogen-free heat-stabilised engineering polyamide compound rated -40 °C to +125 °C with high Shore D hardnessDIN 72551
3Self-lubricating nylon outer surfaceUltra-low-friction, cut-through-resistant polyamide surface with colour/tracer identificationISO 6722-1

FLR4Y-A Bare Copper (0.22–4.0 mm²)

Symmetrical concentric bare copper with PA12 reduced-wall insulation for high-abrasion chassis and seat mechanisms.

FLR4Y-A Tinned Copper (Fuel & ATF Immersion)

Tinned copper conductor with fuel-grade PA12 insulation to prevent sulfur/organic-acid attack on copper inside fuel tanks and gearboxes.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on ISO 6722-1 Class C / 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)
Spark test
5.0 kV AC rms (≥0.5 mm²)

Thermal

Thermal class
ISO 6722-1 Class C: -40 °C to +125 °C (3000 h)
Short-term heat & crystalline melt
240 h at +150 °C · PA12 melting point ≈ +178 °C
Cold winding test
-40 °C for 4 hours 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)
Needle scrape abrasion
>1,500–3,000 cycles (5–10× standard PVC FLRY)

Resistance

Hydrocarbon & fuel immersion
Virtually zero swell in gasoline, E10/E85, diesel, ATF & hydraulic oil
Halogen content
100 % halogen-free thermoplastic polyamide

Reference standards

Reference standards
ISO 6722-1 Class C, DIN 72551 & VDA LV 112
Environmental compliance
Lead-free, halogen-free, RoHS 3 & ELV compliant

Identification

Code breakdown
FL = automotive · R = reduced wall · 4Y = polyamide (PA / Nylon) · -A = concentric
Colour code
DIN 72551 base colours + tracer stripes

Sizes

8 standard sizes (FLR4Y-A)

Nominal dimensions, wall thickness, copper mass and electrical parameters for FLR4Y-A per ISO 6722-1 Class C / 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
FLR4Y-A size range
FLR4Y-A 0.22 mm²0.22 mm² Type A7×0.21 · 0.20 mm1.202.12.96.0
FLR4Y-A 0.35 mm²0.35 mm² Type A7×0.26 · 0.20 mm1.303.34.26.5
FLR4Y-A 0.50 mm²0.50 mm² Type A19×0.19 · 0.22 mm1.604.86.08.0
FLR4Y-A 0.75 mm²0.75 mm² Type A19×0.23 · 0.24 mm1.857.28.79.2
FLR4Y-A 1.00 mm²1.00 mm² Type A19×0.26 · 0.24 mm2.059.611.410.2
FLR4Y-A 1.50 mm²1.50 mm² Type A19×0.32 · 0.24 mm2.3514.416.511.8
FLR4Y-A 2.50 mm²2.50 mm² Type A19×0.41 · 0.28 mm2.9524.027.014.8
FLR4Y-B 4.00 mm²4.00 mm² Type B56×0.31 · 0.32 mm3.6538.442.518.2
  • 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 C / 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 breakdown; resistance per ISO 6722-1100 % of spools
Sample tests
ISO 6722-1 needle scrape abrasion & -40 °C cold windingExceeds Class C abrasion cycles; zero cracking at -40 °CEvery lot
Gasoline/ATF fuel immersion & 3000-hour +125 °C ageingCertified to ISO 6722-1 Class CType qualification

Inspection certificate

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

Product approvals

ISO 6722-1 Class C (+125 °C)DIN 72551 (4Y Polyamide)VDA LV 112RoHS 3 & ELV Compliant

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX FLR4Y-A [size]mm2 PA12 125C ISO 6722-1 CLASS C [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

PDFFLR4Y-A FLR4Y Automotive Wire – technical datasheet8 sizes · construction, technical data, approvalsXLSXFLR4Y-A 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.

What material does '4Y' represent in DIN 72551 and LV 112?
In DIN VDE 0207 / DIN 72551 polymer coding, '4Y' designates polyamide (PA, typically low-moisture-absorption PA11 or PA12 engineering nylon).
Why is FLR4Y-A preferred inside fuel tanks and automatic transmissions?
Plasticized PVC (FLRY/FLRYW) leaches plasticisers and swells or stiffens when continuously submerged in gasoline, ethanol blends (E10/E85) or hot automatic transmission fluid (ATF). Polyamide 4Y is crystalline and unplasticized, exhibiting negligible weight change or dimensional swell in hydrocarbons.
How does FLR4Y-A compare with polypropylene FLR9Y-A?
Both are stiff, halogen-free Class C (+125 °C) thermoplastics with high scrape resistance. FLR4Y-A (PA12) has superior resistance to hot fuel/oil immersion and a higher crystalline melting point (~178 °C vs ~160 °C for PP), while FLR9Y-A (PP) has lower moisture absorption and lower density (0.91 g/cm³).
Why are tinned copper conductors recommended when FLR4Y-A is submerged in sour fuels?
Trace sulfur compounds in diesel or gasoline can permeate thin polymer walls over thousands of hours and tarnish bare copper; tin-plated copper strands prevent copper sulfide formation.

Request a quote

Get an engineering quote for FLR4Y-A

Your selection and application details are copied into the enquiry form below.

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

03Message for our engineers

FLR4Y-A FLR4Y Automotive Wire

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:
Send via WhatsApp

Polypropylene PP Class C

FLR9Y-A

Halogen-free polypropylene (9Y) Class C (+125 °C) stiff harness wire

View productETFE Class D +150 °C

FLR7Y-A / FLR7Y-B

ETFE (7Y) Class D (-65 to +150 °C) cut-through resistant harness wire

View productISO 6722 Class C XLPE

FLR2X-A / FLR2X-B

ISO 6722-1 Class C (+125 °C) cross-linked polyethylene reduced-wall wire

View productISO 6722 Class C PVC

FLRYW-A / FLRYW-B

ISO 6722-1 Class C (+125 °C) heat-resistant reduced-wall PVC wire

View product
DatasheetRequest a quote