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Product

Hook-up & equipment wiresUL 3265 (150 V) & 3266 (300 V)125 °C Cross-Linked XLPECSA CL1252 · VW-1 / FT1

UL AWM 3265 / 3266 Cross-Linked Hook-Up Wire125 °C e-beam cross-linked polyolefin (XLPE) hook-up wire (UL 3265 150 V & UL 3266 300 V)

High-temperature 125 °C electronic hook-up wire certified to UL AWM Style 3265 (150 V, 10-mil wall), Style 3266 (300 V, 16-mil wall) and CSA CL1252, combining tinned copper conductors (30–16 AWG) with electron-beam cross-linked polyolefin (XLPE) insulation.

Flame-retardant
Oil-resistant
Ozone, UV & moisture
Approved
Order designation
UL 3266 300V 22 AWG (7/30)
Outer Ø min
1.5 mm
Outer Ø max
1.6 mm
Weight ≈
5 kg/km
Min. bend R
5 mm
Check against my drumAll sizes (13)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Voltage rating
150 V / 300 V
UL 3265: 150 V · UL 3266: 300 V RMS
Temp. rating
−55…+125 °C
UL 3265/3266 & CSA CL1252 (+125 °C)
Insulation wall
0.25 / 0.41 mm
10 mil (UL 3265) · 16 mil (UL 3266)
Dielectric type
E-beam XLPE/XLPO
Thermoset cross-linked polyolefin
Flame rating
Horiz. / VW-1
UL Horizontal & VW-1 / CSA FT1 options
Size range
30–16 AWG
0.05–1.31 mm² · tinned copper

Typical values for this cable type, based on UL 758 Style 3265 (150 V) & Style 3266 (300 V) · CSA CL1252 — confirmed in the datasheet and quotation for your order.

Application fit

Is UL AWM 3265 / 3266 right for your machine?

UL 3265 and UL 3266 upgrade standard 10-mil (UL 1061) and 16-mil (UL 1007/1569) electronic wires to a +125 °C thermoset cross-linked polyolefin (XLPE/XLPO) system with lower dielectric constant, zero PVC plasticiser outgassing and full resistance to soldering heat and baking cycles.

Fixed installation

Suitable

125 °C internal wiring of power electronics, LED drivers, medical devices, coils, sensors and appliances.

VFD inverter to AC motor screened feeder

Not suitable

Unscreened 150 V / 300 V internal hook-up wire.

Use UL 2464 / 2517

Trailing & towing

Not suitable

Fixed internal appliance and PCB lead wire.

Use EN 50264-2-2

Energy chain / drag chain

Not suitable

For 600 V 125 °C motor leads, transformers and power panels, select UL 3271 or UL 3173 / SIS.

Use UL 3271 (600 V)
Typical machinesHigh-density power supplies, inverters & UPSClass B (130 °C) small coils, transformers & fansMedical diagnostic & laboratory heating equipmentCommercial ovens, coffee machines & white goodsHalogen-free electronic sub-assemblies

Construction

Layer by layer

Shown: UL AWM 3266 22 AWG (7/30) — 7-strand tinned annealed copper conductor (0.33 mm²), 0.41 mm (16 mil) electron-beam cross-linked polyethylene / polyolefin (XLPE) dielectric and +125 °C flame-retardant surface.

123
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Stranded or solid tinned copperStranded (7/38 to 26/30) or solid tinned annealed copper per ASTM B33 (30 AWG to 16 AWG)ASTM B33 · UL 758
2125 °C cross-linked polyolefin (XLPE)0.25 mm (10 mil, UL 3265) or 0.41 mm (16 mil, UL 3266) electron-beam irradiated cross-linked polyethylene / polyolefinUL 758 Style 3265 / 3266
3Thermoset flame-retardant XLPO skinNon-melting, shrinkback-free surface available in standard flame-retardant or low-smoke halogen-free (LSZH) XLPOUL 1581 · CSA C22.2 No. 210 CL1252

UL AWM 3265 · CSA CL1252 (150 V, 125 °C, 0.25 mm / 10-mil XLPE)

Ultra-thin-wall 125 °C cross-linked polyolefin wire for compact sensor, coil and PCB harnesses

UL AWM 3266 · CSA CL1252 (300 V, 125 °C, 0.41 mm / 16-mil XLPE)

300 V 16-mil 125 °C cross-linked polyolefin wire for power supplies, appliances and Class B coils

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on UL 758 Style 3265 (150 V) & Style 3266 (300 V) · CSA CL1252. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage
150 V RMS (UL Style 3265) · 300 V RMS (UL Style 3266 & CSA CL1252)
Dielectric withstand voltage
1500 V AC for 1 min · 3000 V AC spark test
Dielectric constant (εr)
≈ 2.3–2.6 (significantly lower capacitance than PVC)
Max. DC conductor resistance (20 °C)
28 AWG: ≤ 216 Ω/km · 24 AWG: ≤ 84.2 Ω/km · 22 AWG: ≤ 53.2 Ω/km · 20 AWG: ≤ 33.2 Ω/km · 18 AWG: ≤ 21.0 Ω/km · 16 AWG: ≤ 13.2 Ω/km

Thermal

Continuous temperature rating
−55 °C to +125 °C
Short-circuit / solder heat
Thermoset cross-linked polymer resists +250 °C overload and 350 °C soldering irons without melting

Mechanical

Nominal insulation wall
UL 3265: 0.25 mm (10 mil) · UL 3266: 0.41 mm (16 mil)
Min. bending radius
3 × overall diameter (fixed routing)

Resistance

Flame retardance
UL 758 Horizontal / UL 1581 VW-1 & CSA FT1
Varnish & solvent resistance
Resists transformer baking varnishes, encapsulating resins, oils and cleaning solvents

Reference standards

UL AWM styles
UL 758 Style 3265 (150 V, 125 °C) & Style 3266 (300 V, 125 °C)
CSA certification
CSA C22.2 No. 210 Type CL1252 (125 °C, 300 V)
RoHS & REACH
2011/65/EU (RoHS 2) & EC 1907/2006 compliant (halogen-free XLPO options available)

Identification

Standard stock colours
Black, White, Red, Blue, Yellow, Green, Brown, Orange, Violet & Grey
Surface marking
AWM STYLE 3265 150V OR 3266 300V 125C XLPE CSA CL1252 TEBAOFLEX
Customs tariff (HS)
8544.49 (insulated conductors ≤ 1000 V)

Sizes

13 standard UL AWM 3265 / 3266 configurations

Typical UL 758 Style 3265 (150 V) & Style 3266 (300 V) · CSA CL1252 outer diameter limits, copper content and cable weight.

Dimensions & weights
Order designationCores × mm² / AWGAWG ≈Outer Ø min
mm		Outer Ø max
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
mm		Enquiry
UL AWM 3265 — 150 V 125 °C 10-mil Cross-Linked XLPE (28–18 AWG)
UL 3265 150V 28 AWG (7/36)28 AWG (0.08 mm²)280.80.9013
UL 3265 150V 26 AWG (7/34)26 AWG (0.13 mm²)260.91.0123
UL 3265 150V 24 AWG (7/32)24 AWG (0.20 mm²)241.01.1233
UL 3265 150V 22 AWG (7/30)22 AWG (0.33 mm²)221.21.3344
UL 3265 150V 20 AWG (7/28)20 AWG (0.52 mm²)201.41.5564
UL 3265 150V 18 AWG (19/30)18 AWG (0.82 mm²)181.61.8795
UL AWM 3266 — 300 V 125 °C 16-mil Cross-Linked XLPE (28–16 AWG)
UL 3266 300V 28 AWG (7/36)28 AWG (0.08 mm²)281.11.2024
UL 3266 300V 26 AWG (7/34)26 AWG (0.13 mm²)261.21.3134
UL 3266 300V 24 AWG (7/32)24 AWG (0.20 mm²)241.31.4244
UL 3266 300V 22 AWG (7/30)22 AWG (0.33 mm²)221.51.6355
UL 3266 300V 20 AWG (7/28)20 AWG (0.52 mm²)201.71.8575
UL 3266 300V 18 AWG (19/30)18 AWG (0.82 mm²)181.92.07106
UL 3266 300V 16 AWG (26/30)16 AWG (1.31 mm²)162.22.412147
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Dimensions and weights are typical values per UL 758 Style 3265 (150 V) & Style 3266 (300 V) · CSA CL1252. Minimum fixed bending radius shown is 3 × OD.

Reel check

Will it fit your machine?

A first screen using datasheet values. Engineering confirms drum geometry, acceleration and tension with your quotation.

Check results

Drum core 300 mm ≥ 10 mmBending radius OK (3 × OD 1.6 mm)
Minimum bending radius
5 mm
Min. drum core diameter
≈ 10 mm
Cable weight on drum
0.3 kg
Copper content
0.2 kg
Indicative only: based on the datasheet outer diameter and 3 × OD bending radius. Current derating for wound layers per DIN VDE 0298-4 is assessed separately.

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
AC dielectric voltage test1.5 kV AC (50/60 Hz)Every manufactured length
Conductor DC resistanceIEC 60228 / ASTM (tinned copper)Every manufactured length
Sample tests
Flame propagation testIEC 60332-1-2 / UL VW-1 / ISO 6722-1Per production batch
Insulation & sheath material physical propertiesUL 758 Style 3265 (150 V) & Style 3266 (300 V) · CSA CL1252Type approval

Inspection certificate

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

Product approvals

UL 758 Style 3265 (150 V) & Style 3266 (300 V) · CSA CL1252CE · RoHS 2 (2011/65/EU) · REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

AWM STYLE 3265/3266 125C XLPE CSA CL1252 TEBAOFLEX
Delivery form
Export wooden drums, reels or coils, cut-to-length on request
Packaging
Heat-treated ISPM-15 timber drums or spools with sealed ends
Conductor / colour options
Custom core counts, stripe combinations or cut harnesses on request

Technical documents

Downloads

PDFUL AWM 3265 / 3266 Cross-Linked Hook-Up Wire – technical datasheet13 sizes · construction, technical data, approvalsXLSXUL AWM 3265 / 3266 spec data (Excel)All 13 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 do UL 3265 and UL 3266 differ from UL 1429 and UL 1430?
While both pairs share identical 10-mil (150 V) and 16-mil (300 V) wall thicknesses and electron-beam cross-linking, UL 1429/1430 uses cross-linked PVC rated 80/105 °C, whereas UL 3265/3266 uses cross-linked polyethylene/polyolefin (XLPE/XLPO) rated +125 °C continuous with lower dielectric loss and halogen-free options.
Can UL 3266 be used as a coil or transformer lead-out wire?
Yes. Its +125 °C thermoset XLPE insulation withstands Class B (130 °C) varnish dip-and-bake cycles without softening or cracking.
What is the 600 V equivalent of UL 3266?
For 600 V RMS at +125 °C with a 0.76 mm (30 mil) cross-linked polyolefin wall, select UL AWM 3271 (or dual-rated UL 3173 / SIS).
Does XLPE contain plasticisers that can fog optical or relay contacts?
No. Unlike flexible PVC, cross-linked polyolefin (XLPE) contains no migratory phthalate or ester plasticisers, preventing contact fouling in sealed relays and optical enclosures.

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UL AWM 3265 / 3266 Cross-Linked Hook-Up Wire

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Reel & motion:
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