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Product

SAE J1128 North American Automotive Primary Wires60 V DC / 25 V ACSAE J1128 Thin-Wall XLPE-40 to +125 °C (Class C)

TXL Automotive Cross-Linked Wire60 V DC / 25 V AC SAE J1128 thin-wall cross-linked polyethylene (XLPE) wire (-40 to +125 °

Type TXL (Thin-Wall Cross-Linked) is the premier North American OEM harness wire per SAE J1128, combining concentric stranded ASTM B3 bare copper with a 0.40 mm thin-wall electron-beam cross-linked polyethylene (XLPE) insulation rated for -40 °C to +125 °C (IS

+125 °C Class C XLPE
Engine-Bay Fluid Proof
SAE J1128 / Ford / GM
Order designation
TXL 18 AWG (0.8 mm²)
Max. OD
2.20 mm
Copper mass
8.9 kg/km
Total mass ≈
11.2 kg/km
Min. bend R
8.8 mm
All sizes (12)
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
SAE J1128 primary harness
Thermal class
-40 to +125 °C
ISO 6722-1 Class C (3000 h)
Gauge range
24 to 8 AWG
0.22 to 8.0 mm² metric equivalent
Wall profile
Thin-wall (0.40m
0.40 mm XLPE wall (24–14 AWG)
Conductor
Concentric Cu
7/19/37-strand ASTM B3 copper
Min. bend radius
4 × wire OD
High-density ECU & engine looms

Typical values for this cable type, based on SAE J1128 / ISO 6722-1 Class C — confirmed in the datasheet and quotation for your order.

Application fit

Is TXL right for your machine?

The workhorse wire for modern automotive OEM engine-bay harnesses, transmission looms, ECU multi-pin connectors, ABS/ESC modules and EV low-voltage control harnesses.

Fixed installation

Suitable

Engineered for high-density engine-compartment, chassis and cockpit wiring looms.

Switchgear & control cabinet wiring

Suitable

Tight OD tolerance (±0.08 mm) ensures hermetic sealing in USCAR-2 silicone mat-seal connectors.

Motor stator, traction & converter leads

Suitable

Cross-linked XLPE resists thermal deformation and overload up to +250 °C short-circuit.

Motorised monospiral reel

Not suitable

Concentric 7/19-strand harness wire is designed for fixed vehicle looms, not reeling.

S07HXHX flexible LSZH
Typical machinesOEM passenger & EV harnessesEngine bay & powertrain loomsHeavy-duty truck & bus chassisConstruction & mining vehiclesMotorsport & aerospace ground support

Construction

Layer by layer

Symmetrical concentric stranded ASTM B3 bare (or tinned) copper conductor + 0.40 mm thin-wall e-beam cross-linked polyethylene (XLPE) dielectric + smooth colour-coded outer surface.

123
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Concentric stranded copperSymmetrical 7-, 19- or 37-strand annealed bare copper per ASTM B3 / SAE J1128ASTM B3
2Thin-wall cross-linked XLPEElectron-beam or silane cross-linked polyolefin (XLPE) compound rated -40 °C to +125 °C (0.40 mm wall on 24–14 AWG)SAE J1128
3Concentric mat-seal surface finishPrecision-extruded circular XLPE surface skin with optional tracer stripe for USCAR connector mat sealsSAE J1128

SAE J1128 TXL Bare Copper

Standard concentric bare copper conductor with -40 to +125 °C thin-wall XLPE insulation.

TXL Water-Blocked / Anti-Capillary

Longitudinal water-blocking compound between copper strands to prevent capillary wicking into sealed ECUs.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on SAE J1128 / ISO 6722-1 Class C. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage
≤60 V DC / ≤25 V AC
Wet dielectric test
1.0 kV AC rms for 1 min (after 4 h in 5 % NaCl solution)
In-line spark test
3.0 kV AC rms

Thermal

Continuous operating temp.
-40 °C to +125 °C (3000 h Class C)
Short-term overload / hot-set
+150 °C (240 h) · +250 °C short-circuit without melt-through
Cold bend test
-40 °C for 4 hours without cracking

Mechanical

Nom. wall thickness (24–14 AWG)
0.40 mm (0.016 in)
Nom. wall thickness (12 / 10 / 8 AWG)
0.46 mm (12 AWG) · 0.56 mm (10 AWG) · 0.71 mm (8 AWG)
Pinch & sandpaper abrasion
Exceeds SAE J1128 Table 5 XLPE abrasion requirements

Resistance

Flame resistance
Self-extinguishing within 70 s (50 mm max burn)
Fluid & solvent resistance
Gasoline, diesel, motor oil, ATF, glycol, brake fluid & battery acid

Reference standards

Governing standard
SAE J1128 Type TXL & ISO 6722-1 Class C
OEM specifications
Ford ESB-M1L123-A, Chrysler MS-8288, GMW15626

Identification

Colour coding
Full OEM base colours + tracer stripe combinations
Halogen status
Halogen-free XLPE formulation options available

Sizes

12 standard sizes (TXL)

Nominal dimensions, wall thickness, copper mass and electrical parameters for TXL per SAE J1128 / ISO 6722-1 Class C.

Dimensions & masses
DesignationAWG (Metric mm²)Strands / Wall mmMax. OD
mm		Copper
kg/km		Total mass ≈
kg/km		Min. bend R
mm		Enquiry
TXL size range
TXL 24 AWG (0.22 mm²)24 AWG (0.22 mm²)7/32 · 0.40 mm1.552.03.66.2
TXL 22 AWG (0.35 mm²)22 AWG (0.35 mm²)7/30 · 0.40 mm1.703.14.96.8
TXL 20 AWG (0.5 mm²)20 AWG (0.5 mm²)7/28 · 0.40 mm1.954.96.97.8
TXL 18 AWG (0.8 mm²)18 AWG (0.8 mm²)19/30 · 0.40 mm2.208.911.28.8
TXL 16 AWG (1.0 mm²)16 AWG (1.0 mm²)19/29 · 0.40 mm2.4011.213.89.6
TXL 14 AWG (2.0 mm²)14 AWG (2.0 mm²)19/27 · 0.40 mm2.9017.821.011.6
TXL 12 AWG (3.0 mm²)12 AWG (3.0 mm²)19/25 · 0.46 mm3.5028.232.514.0
TXL 10 AWG (5.0 mm²)10 AWG (5.0 mm²)19/23 · 0.56 mm4.3045.051.017.2
TXL 8 AWG (8.0 mm²)8 AWG (8.0 mm²)19/21 · 0.71 mm5.4571.580.521.8
TXL 20 AWG (19/32)20 AWG (19/32)19/32 · 0.40 mm1.985.27.27.9
TXL 12 AWG (37/28)12 AWG (37/28)37/28 · 0.46 mm3.5528.833.214.2
TXL 10 AWG (37/26)10 AWG (37/26)37/26 · 0.56 mm4.3545.852.017.4
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Dimensions and maximum overall diameters conform to SAE J1128 / ISO 6722-1 Class C.

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 kV in-line AC spark test & DC resistance100 % spark-tested; DC resistance per SAE J1128100 % of spools
Sample tests
SAE J1128 cross-link hot-plate & overload testNo melt-through under heated mandrel load at +150/+200 °CEvery batch
3000-hour +125 °C thermal ageing & fluid immersionPasses 1.0 kV wet dielectric after 3000 h at +125 °CType qualification

Inspection certificate

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

Product approvals

SAE J1128 Type TXLISO 6722-1 Class C (+125 °C)Ford ESB-M1L123-AChrysler MS-8288GM GMW15626

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX SAE J1128 TXL 20 AWG (0.5mm2) 60VDC +125C XLPE [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

PDFTXL Automotive Cross-Linked Wire – technical datasheet12 sizes · construction, technical data, approvalsXLSXTXL spec data (Excel)All 12 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 is the difference between TXL, GXL and SXL cross-linked automotive wires?
All three use SAE J1128 cross-linked polyethylene (XLPE) rated from -40 °C to +125 °C, differing strictly in insulation wall thickness. On a 20 AWG wire, TXL has a 0.40 mm thin wall (1.95 mm max OD), GXL has a 0.58 mm regular wall (2.40 mm max OD), and SXL has a 0.74 mm heavy wall (2.80 mm max OD).
Why does TXL use concentric 7- or 19-strand conductors instead of random bunched strands?
Symmetrical concentric stranding (7, 19 or 37 strands) creates a perfectly circular conductor core without high spots, allowing a uniform 0.40 mm XLPE wall and tight outer diameter tolerance so multi-pin silicone connector mat seals remain watertight.
How does European FLR2X compare with North American TXL?
FLR2X-A (per DIN 72551 / ISO 6722-1 Class C) is the European metric counterpart to TXL, using electron-beam cross-linked polyethylene (-40 to +125 °C) over metric cross-sections (0.35, 0.5, 0.75, 1.0, 1.5, 2.5 mm²).
What is anti-capillary (water-blocked) TXL wire used for?
In engine-bay harnesses where one end of a wire connects to an unsealed ground eyelet and the other enters a sealed ECU, pressure differentials during cooling can suck water along the interstices between copper strands. Anti-capillary TXL fills the strand interstices to block moisture wicking.

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TXL Automotive Cross-Linked Wire

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