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Product

DIN 72551 / ISO 6722 / LV 112 Reduced-Wall (FLR) Automotive Wires60 V DC ISO 6722-1Arctic Cold-Flex (-50 to +105 °C)Reduced-Wall Kälte-PVC (YK)

FLRYK Automotive Wire60 V DC cold-flexible (-50 to +105 °C) reduced-wall PVC automotive wire for arctic & flexi

FLRYK ('YK' = Kälteflexibles PVC) is a cold-flexible reduced-wall automotive primary wire engineered to extend low-temperature flexibility down to -50 °C while maintaining ISO 6722-1 Class B (+105 °C) continuous thermal rating. Formulated with low-temperature

Arctic -50 °C Cold Winding
ISO 6722-1 Class B +105 °C
DIN 72551 / LV 112
Order designation
FLRYK 1.00 mm²
Max. OD
2.10 mm
Copper mass
9.6 kg/km
Total mass ≈
12.2 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 vehicle primary
Low-temp limit
-50 °C cold wind
10 °C lower than standard FLRY
Upper temp limit
+105 °C (Class B
3000-hour thermal rating
Insulation
Cold-flexible PV
Adipate/sebacate plasticized PVC
Size range
0.35 to 16 mm²
Type A concentric & Type B bunched
Min. bend radius
3.5 × wire OD
Sub-zero door & tailgate hinges

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

Application fit

Is FLRYK right for your machine?

Specified for Nordic/arctic commercial vehicles, snowploughs, cold-storage logistics trucks, tailgate/door transition bellows and exterior chassis sensors operating down to -50 °C.

Fixed installation

Suitable

Direct drop-in replacement for FLRY in cold-climate vehicle harnesses.

Switchgear & control cabinet wiring

Suitable

Standard FLR outer diameters fit all European single-wire seals and terminal crimps.

Free-hanging vertical run

Suitable

Remains supple in door, liftgate and cab-tilt flexing boots at sub-zero temperatures.

Furnace, kiln & high-temp zone

Not suitable

Rated to +105 °C; for combined -50 °C cold-flex and +125 °C heat resistance specify FLRYWK.

FLRYWK -50 to +125 °C wire
Typical machinesArctic & Nordic trucks/busesDoor & liftgate flex grommetsCold-chain refrigerated trailersSnow-clearing & municipal plantOutdoor chassis & ABS jumpers

Construction

Layer by layer

Fine-stranded soft annealed bare copper (Cu-ETP1) + reduced-wall cold-flexible Class B PVC compound (YK, -50 to +105 °C) + smooth colour/stripe finish.

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 concentric or Type B fine-stranded bunched constructionISO 6722-1
2Cold-flexible PVC insulation (YK)Lead-free PVC plasticized with low-glass-transition-temperature esters for -50 °C to +105 °C operationISO 6722-1
3Low-friction colour/stripe surfaceSupple sub-zero outer surface with permanent colour and tracer stripe identificationDIN 72551

FLRYK-A (Concentric Stranding)

Symmetrical 7/19-wire concentric conductor with -50 °C cold-flexible PVC wall for sealed exterior connectors.

FLRYK-B (Flexible Bunched Stranding)

Fine bunched copper conductor with -50 °C cold-flexible PVC wall for door boots and cold-climate looms.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on ISO 6722-1 Class B / 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 temperature range
-50 °C to +105 °C (3000 h)
Arctic cold winding test
-50 °C for 4 hours on mandrel without cracking and 1 kV dielectric pass
Short-term heat ageing
240 hours at +130 °C

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
Complies with ISO 6722-1 reduced-wall abrasion cycles

Resistance

Flame propagation
Self-extinguishes within 70 s per ISO 6722-1 45° burn test
De-icing salt & fluid resistance
Resists CaCl2/NaCl road brine, diesel, oil, glycol coolant & washer fluid

Reference standards

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

Identification

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

Sizes

10 standard sizes (FLRYK)

Nominal dimensions, wall thickness, copper mass and electrical parameters for FLRYK per ISO 6722-1 Class B / 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
FLRYK size range
FLRYK 0.35 mm²0.35 mm²12×0.21 · 0.20 mm1.353.34.65.4
FLRYK 0.50 mm²0.50 mm²16×0.21 · 0.22 mm1.604.86.66.4
FLRYK 0.75 mm²0.75 mm²24×0.21 · 0.24 mm1.907.29.57.6
FLRYK 1.00 mm²1.00 mm²32×0.21 · 0.24 mm2.109.612.28.4
FLRYK 1.50 mm²1.50 mm²30×0.26 · 0.24 mm2.4014.417.59.6
FLRYK 2.50 mm²2.50 mm²50×0.26 · 0.28 mm3.0024.028.512.0
FLRYK 4.00 mm²4.00 mm²56×0.31 · 0.32 mm3.7038.444.514.8
FLRYK 6.00 mm²6.00 mm²84×0.31 · 0.32 mm4.3057.665.017.2
FLRYK 10.0 mm²10.0 mm²80×0.41 · 0.48 mm6.0096.0109.024.0
FLRYK 16.0 mm²16.0 mm²126×0.41 · 0.52 mm7.20153.6172.028.8
  • 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 B / 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
-50 °C 4-hour cold mandrel winding & 1.0 kV post-bend voltageZero insulation cracks at -50 °CEvery batch
3000-hour +105 °C ageing, scrape abrasion & fluid immersionVerified to ISO 6722-1 Class B + -50 °C cold ratingType qualification

Inspection certificate

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

Product approvals

ISO 6722-1 Class B (-50 °C Extended Cold)DIN 72551VDA LV 112RoHS 3 & ELV Compliant

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX FLRYK [size]mm2 -50C/+105C COLD-FLEX PVC 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

PDFFLRYK Automotive Wire – technical datasheet10 sizes · construction, technical data, approvalsXLSXFLRYK 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.

Why does standard FLRY crack below -40 °C while FLRYK survives -50 °C?
Standard FLRY PVC reaches its glass-transition stiffening zone around -40 °C. FLRYK ('K' = Kälteflexibel) incorporates linear aliphatic ester plasticisers (adipates/sebacates) that depress the brittle point below -50 °C, allowing harnesses to flex in arctic winters without splitting.
What is the difference between FLRYK and FLRYWK?
FLRYK combines -50 °C cold flexibility with Class B (+105 °C) upper temperature resistance. FLRYWK combines -50 °C cold flexibility with Class C (+125 °C) heat resistance for warm zones in arctic vehicles.
Does FLRYK have the same outer diameter as standard FLRY?
Yes. FLRYK follows the identical ISO 6722-1 / DIN 72551-6 reduced-wall ('R') dimensional tables, so no changes to crimp terminals or connector cavity seals are needed.
Where on a passenger vehicle is FLRYK commonly used even in temperate climates?
In door-to-pillar and tailgate rubber bellows that undergo tens of thousands of flex cycles during winter mornings, FLRYK's lower sub-zero flexural modulus reduces mechanical stress on copper strands.

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FLRYK Automotive Wire

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-50 to +125 °C wide-temp

FLRYWK

Heat-resistant (+125 °C) and cold-flexible (-50 °C) reduced-wall PVC wire

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View productISO 6722 Class C PVC

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

View product
DatasheetRequest a quote