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Product

DIN 72551 / ISO 6722 / LV 112 Reduced-Wall (FLR) Automotive Wires60 V DC ISO 6722-1 Class C-50 to +125 °C Wide WindowHeat + Arctic Cold PVC (YWK)

FLRYWK Automotive Wire60 V DC wide-temperature (-50 to +125 °C) heat-resistant & cold-flexible reduced-wall PVC

FLRYWK ('YWK' = Wärmebeständiges und kälteflexibles PVC) combines ISO 6722-1 Class C (+125 °C) heat endurance with extended -50 °C arctic cold flexibility in a single reduced-wall PVC primary wire. It bridges a 175 °C operating window (-50 °C to +125 °C) for c

-50 °C Arctic Cold Flex
Class C +125 °C Heat Rated
Non-Volatile Ester Blend
ISO 6722-1 / LV 112
Order designation
FLRYWK 1.00 mm²
Max. OD
2.10 mm
Copper mass
9.6 kg/km
Total mass ≈
12.4 kg/km
Min. bend R
8.4 mm
All sizes (10)
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 wire
Temp window
-50 to +125 °C
175 °C total thermal span
Thermal class
Class C (+125 °C
Plus -50 °C cold winding
Insulation
YWK specialty PV
Heat-resistant + cold-flexible
Size range
0.35 to 16 mm²
Type A concentric & Type B bunched
Min. bend radius
4 × wire OD
Arctic & warm engine zones

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 FLRYWK right for your machine?

Specified for heavy commercial vehicles, Nordic defence/utility fleets, cold-climate engine compartments, cab-tilt hinges and exterior chassis sensors requiring both -50 °C flex life and +125 °C thermal ageing.

Fixed installation

Suitable

Ideal for harnesses spanning cold exterior chassis frames into warm +125 °C engine perimeters.

Switchgear & control cabinet wiring

Suitable

Standard FLR reduced-wall dimensions fit all European crimp terminals and single-wire seals.

Free-hanging vertical run

Suitable

Withstands cab-tilt and door-bellows flexing down to -50 °C without insulation cracking.

Furnace, kiln & high-temp zone

Not suitable

For temperatures above +125 °C (up to +150/+200 °C) combined with -65 °C cold rating, select FLR7Y or FLR5Y.

FLR7Y -65 to +150 °C wire
Typical machinesHeavy truck cab-tilt & engine loomsNordic & arctic off-highway plantCold-climate passenger car engine baysBus & coach HVAC / auxiliary heatersAgricultural & forestry machinery

Construction

Layer by layer

Soft annealed bare copper (Cu-ETP1, Type A concentric or Type B bunched) + reduced-wall heat-resistant and cold-flexible PVC compound (YWK, -50 to +125 °C).

123
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Cu-ETP1 bare copper (Type A or B)Soft annealed electrolytic copper in Type A symmetrical concentric or Type B flexible bunched constructionISO 6722-1
2Wide-range YWK PVC insulationLead-free PVC compounded with high-molecular-weight low-temperature trimellitate/polyester plasticisers for -50 °C to +125 °C serviceISO 6722-1
3Smooth colour/stripe outer surfaceAbrasion-resistant sub-zero flexible surface with DIN 72551 colour and stripe codingDIN 72551

FLRYWK-A (Concentric 7/19-Wire)

Symmetrical concentric copper conductor (0.35–2.5 mm²) with -50 to +125 °C YWK reduced-wall insulation.

FLRYWK-B (Bunched Flexible)

Asymmetrical bunched copper conductor (0.35–16 mm²) with -50 to +125 °C YWK reduced-wall insulation.

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

Continuous operating window
-50 °C to +125 °C (3000 h at +125 °C)
Short-term heat & overload
240 h at +150 °C · 6 h overload at +175 °C
Arctic cold winding test
-50 °C for 4 hours on mandrel without cracking

Mechanical

Min. wall thickness
0.20 mm (0.35–0.5 mm²) · 0.24 mm (0.75–1.5 mm²) · 0.28 mm (2.5 mm²)
Scrape & sandpaper abrasion
Meets ISO 6722-1 Class C reduced-wall abrasion cycles

Resistance

Flame propagation
Self-extinguishes within 70 s per ISO 6722-1 45° burn test
Fluid & road-salt resistance
Resists engine oil, diesel, ATF, glycol coolant & de-icing brine

Reference standards

Reference standards
ISO 6722-1 Class C (-50 °C Cold Extended) & DIN 72551
Environmental compliance
Lead-free, RoHS 3 & ELV compliant

Identification

Code breakdown
FL = automotive · R = reduced wall · YW = +125 °C PVC · K = -50 °C cold-flexible
Colour code
DIN 72551 base colours + tracer stripes

Sizes

10 standard sizes (FLRYWK)

Nominal dimensions, wall thickness, copper mass and electrical parameters for FLRYWK 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
FLRYWK size range
FLRYWK 0.35 mm²0.35 mm²12×0.21 · 0.20 mm1.353.34.65.4
FLRYWK 0.50 mm²0.50 mm²16×0.21 · 0.22 mm1.604.86.76.4
FLRYWK 0.75 mm²0.75 mm²24×0.21 · 0.24 mm1.907.29.67.6
FLRYWK 1.00 mm²1.00 mm²32×0.21 · 0.24 mm2.109.612.48.4
FLRYWK 1.50 mm²1.50 mm²30×0.26 · 0.24 mm2.4014.417.79.6
FLRYWK 2.50 mm²2.50 mm²50×0.26 · 0.28 mm3.0024.028.812.0
FLRYWK 4.00 mm²4.00 mm²56×0.31 · 0.32 mm3.7038.445.014.8
FLRYWK 6.00 mm²6.00 mm²84×0.31 · 0.32 mm4.3057.665.817.2
FLRYWK 10.0 mm²10.0 mm²80×0.41 · 0.48 mm6.0096.0109.524.0
FLRYWK 16.0 mm²16.0 mm²126×0.41 · 0.52 mm7.20153.6173.028.8
  • 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 faults; DC resistance per ISO 6722-1100 % of spools
Sample tests
-50 °C cold mandrel winding & +150 °C 240-hour heat ageingPasses both -50 °C cold wind and Class C heat shockEvery lot
3000-hour +125 °C Class C endurance & automotive fluid testFull compliance with ISO 6722-1 Class C (-50 °C)Type qualification

Inspection certificate

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

Product approvals

ISO 6722-1 Class C (-50 to +125 °C)DIN 72551 (FLRYWK)VDA LV 112RoHS 3 & ELV Compliant

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX FLRYWK [size]mm2 -50C/+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

PDFFLRYWK Automotive Wire – technical datasheet10 sizes · construction, technical data, approvalsXLSXFLRYWK spec data (Excel)All 10 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 FLRYWK differ from FLRYW and FLRYK?
FLRYW is rated -40 °C to +125 °C (heat-resistant Class C). FLRYK is rated -50 °C to +105 °C (cold-flexible Class B). FLRYWK combines both modifiers ('YW' + 'K') to achieve -50 °C to +125 °C in a single reduced-wall PVC wire.
Why is formulating a PVC compound for both -50 °C and +125 °C challenging?
Low-temperature plasticisers that give -50 °C flexibility typically have lower molecular weight and evaporate at +125 °C, whereas heavy polymeric plasticisers that survive +125 °C stiffen above -40 °C. FLRYWK uses a synergistic blend of branched trimellitates and polymeric esters that satisfies both tests.
Where is FLRYWK most frequently specified?
On heavy commercial trucks (cab-tilt harnesses that flex in -50 °C winters right above a +120 °C diesel engine), forestry harvesters, snow groomers and arctic military vehicles.
Does FLRYWK use standard FLRY crimp terminals?
Yes. FLRYWK shares the exact same conductor stranding and reduced-wall outer diameter table as FLRY and FLRYW.

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FLRYWK Automotive Wire

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