UL 3266 XLPE Wire 125°C 300V, Low-Smoke Non-Halogen, 10–30 AWG
UL 3266 cross-section
  1. UL 3266 XLPE Wire 125°C 300V, Low-Smoke Non-Halogen, 10–30 AWG
  2. UL 3266 cross-section

UL 3266 XLPE Wire 125°C 300V, Low-Smoke Non-Halogen, 10–30 AWG

UL 3266 wire is a 300 V, 125 °C appliance wire with low-smoke, non-halogen XLPE insulation over tinned, bare or top-coated copper, offered in 24 solid and stranded constructions from 10 AWG to 30 AWG for internal wiring.

  • Voltage rating300 V
  • Temperature rating125 °C
  • Copper conductorTinned, bare or top-coated
  • InsulationXLPE, low smoke, non-halogen
  • Sizes10 to 30 AWG
  • Overall diameter1.10 mm to 4.00 mm
  • Flame testsVW-1 and FT2
  • Constructions24 solid and stranded options

Download UL 3266 datasheet (PDF)Full specifications

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Product overview

UL 3266 is the UL wire style for 300 V, 125 °C appliance wiring material with cross-linked polyethylene insulation. TEBAOFLEX builds it with a low-smoke, non-halogen XLPE wall over tinned, bare or top-coated copper, in 24 solid and stranded constructions from 10 AWG to 30 AWG. Cross-linking makes the insulation a thermoset, so it keeps its shape next to hot components and under a soldering iron.

Choose UL 3266 for internal wiring of appliances and electronic equipment where circuits stay at or below 300 V and the wire runs warm, up to 125 °C continuous. The 300 V wall keeps overall diameters between 1.10 mm and 4.00 mm, which helps where many leads share a small enclosure or a dense harness, and the insulation carries VW-1 and FT2 flame ratings.

Browse the UL style wire category for the other PTFE, FEP, silicone and XLPE styles or download the UL 3266 datasheet (PDF).

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Application & Features

Selection overview

UL 3266 is used for internal leads in appliances and electronic equipment: wiring between circuit boards, switches, sensors and relays, leads inside power supplies, chargers and control units, and dense looms where many small conductors share one route. Several strandings are offered at 10, 16, 18, 20, 22 and 24 AWG, so the conductor can be matched to the job: finer strands for leads that are routed and flexed, solid wire for fixed leads terminated on a board or a terminal.

Within the TEBAOFLEX range, compare UL 3173 for the same 125 °C XLPE wire rated 600 V, UL 3132 for a 300 V silicone rubber wire rated 150 °C, and UL 1333 for a 300 V FEP wire rated 150 °C with tinned copper.

  • Cross-linked XLPEA thermoset wall that holds its shape near hot parts and during soldering.
  • Compact 300 V wireOverall diameters from 1.10 mm, for dense harnesses and small enclosures.
  • Low smoke, non-halogenA compound that limits smoke and corrosive gases if the equipment catches fire.
  • 24 constructionsSolid and stranded options from 10 AWG to 30 AWG in tinned, bare or top-coated copper.
Loom of thin coloured hook-up wires being connected to a vehicle steering column and lighting relays, the kind of compact wiring where 300 V, 125 °C UL 3266 XLPE wire is used
A vehicle wiring loom under construction, with dozens of small coloured leads joined to column switches and lighting relays. Small-diameter 125 °C wire with a cross-linked wall keeps bundles like this compact. Photo: dave_7 from Lethbridge, Canada, CC BY-SA 2.0, via Wikimedia Commons.

Specifications

Technical data

Nominal values for UL 3266 constructions. The final construction is confirmed on the TEBAOFLEX datasheet issued with your quotation.

Electrical, thermal and material data

Parameter Value
Voltage rating 300 V
Temperature rating 125 °C
Conductor Tinned, bare or top-coated copper strands
Insulation XLPE
Protection XLPE insulation with low smoke and non-halogen construction
Performance Excellent thermal stability and chemical resistance
Construction Can be twisted pair or multi-core
Wire style UL AWM style 3266
Standards UL 758-2010; UL 1581-2009
Flame rating VW-1 and FT2
Environmental Low smoke, non-halogen; RoHS/REACH compliant
Application Internal wiring of appliances and electronic equipment

Dimensions and electrical data, part 1 (10 to 20 AWG)

AWG Stranding Cond. dia. mm Insul. thickness Overall dia. mm Resistance ohm/km
10 105/0.254 3.00 0.50 / 0.33 4.00 3.54
10 37/0.42 2.95 0.50 / 0.33 3.95 3.54
12 65/0.254 2.36 0.50 / 0.33 3.40 5.64
14 41/0.254 1.88 0.50 / 0.33 2.90 8.96
16 19/0.30 1.50 0.40 / 0.33 2.30 14.60
16 26/0.254 1.50 0.40 / 0.33 2.30 14.60
18 41/0.16 1.18 0.40 / 0.33 2.00 23.20
18 34/0.18 1.21 0.40 / 0.33 2.00 23.20
18 19/0.235 1.18 0.40 / 0.33 2.00 23.20
18 16/0.254 1.18 0.40 / 0.33 2.00 23.20
18 1/1.02 1.02 0.40 / 0.33 1.82 23.20
20 21/0.18 0.95 0.40 / 0.33 1.75 36.70

Dimensions and electrical data, part 2 (20 to 30 AWG)

AWG Stranding Cond. dia. mm Insul. thickness Overall dia. mm Resistance ohm/km
20 19/0.19 0.95 0.40 / 0.33 1.75 36.70
20 1/0.813 0.813 0.40 / 0.33 1.61 36.70
22 19/0.15 0.75 0.40 / 0.33 1.55 59.40
22 17/0.16 0.76 0.40 / 0.33 1.56 59.40
22 7/0.254 0.76 0.40 / 0.33 1.56 59.40
22 1/0.65 0.65 0.40 / 0.33 1.45 56.40
24 11/0.16 0.61 0.40 / 0.33 1.41 94.20
24 19/0.12 0.60 0.40 / 0.33 1.41 94.20
24 1/0.51 0.51 0.40 / 0.33 1.31 89.30
26 7/0.16 0.48 0.40 / 0.33 1.28 150.00
28 7/0.127 0.38 0.40 / 0.33 1.18 239.00
30 7/0.10 0.30 0.40 / 0.33 1.10 381.00

Selection note: Before ordering, ask our engineers to confirm the nominal and minimum insulation thickness, the reference temperature of the conductor resistance, the conductor finish (tinned, bare or top-coated) for your termination method, the current rating for your installation, the minimum bending radius, the insulation colours, the surface marking and the put-up lengths you need.

Standards & References

Applicable standards and compliance

  • Wire styleUL AWM style 3266 appliance wiring material, 300 V and 125 °C; reference standards UL 758 and UL 1581.
  • Flame testsVW-1 (vertical wire) and FT2 (horizontal) flame ratings for the insulation.
  • EnvironmentalLow-smoke, non-halogen XLPE insulation; RoHS/REACH compliant.
  • ApprovalsUL style, CSA and flame-test markings for your order are confirmed and quoted per order.

Construction

Material and build-up

UL 3266 is a single-conductor wire with two layers: a tinned, bare or top-coated copper conductor and one XLPE insulation wall.

  • Conductor: tinned, bare or top-coated copper, stranded from 105/0.254 at 10 AWG to 7/0.10 at 30 AWG, with solid options at 18, 20, 22 and 24 AWG.
  • Insulation: cross-linked polyethylene (XLPE) with thermal stability and chemical resistance, in a low-smoke, non-halogen compound with VW-1 and FT2 flame ratings.
  • Wall: a heavier wall on 10 to 14 AWG and a lighter one from 16 AWG down, giving overall diameters from 4.00 mm at 10 AWG to 1.10 mm at 30 AWG.
  • Assemblies: single wires can be twisted into pairs or laid up into multi-core constructions.

FAQ

Selection questions

What is UL 3266 wire?

UL 3266 is a UL AWM wire style for appliance wiring material rated 300 V and 125 °C. The TEBAOFLEX version uses low-smoke, non-halogen XLPE insulation over tinned, bare or top-coated copper, in 24 solid and stranded constructions from 10 AWG to 30 AWG, for internal wiring of appliances and electronic equipment.

How is UL 3266 different from UL 3173 and UL 3287?

All three use XLPE insulation. UL 3266 is rated 300 V and 125 °C. UL 3173 keeps the 125 °C rating but is rated 600 V, and UL 3287 is rated 600 V at 105 °C. Choose UL 3266 when circuits stay at or below 300 V and the wire runs up to 125 °C.

Which 18 AWG construction should I choose?

The size table lists five 18 AWG constructions: 41/0.16, 34/0.18, 19/0.235 and 16/0.254 stranded, each 2.00 mm over the insulation, and a solid 1/1.02 wire at 1.82 mm. All show 23.20 ohm/km. More, finer strands give a more flexible lead; the solid wire suits fixed leads terminated on a board or a terminal. Tell us how the lead is terminated and whether it flexes in service.

Which conductor finish should I choose?

UL 3266 is offered with tinned, bare or top-coated copper. Tell us how the leads are terminated (soldered, crimped or welded) and where the equipment is used, and our engineers recommend the finish and confirm it on the datasheet issued with your quotation.

What should I send for a quotation?

Send the UL style, AWG size and stranding, conductor finish, insulation colour, single wire, twisted pair or multi-core, put-up length, quantity and any UL, CSA or flame-test marking requirement. Our engineers confirm the construction on the datasheet issued with your quotation.

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Send the UL style, AWG size and stranding, conductor finish, insulation colour, single wire or twisted-pair or multi-core assembly, put-up length, quantity and marking requirement, and we will confirm the construction and quote.

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Quality Assurance

Testing at every stage in our own workshop and laboratory, from incoming copper to the packed drum.

Bare copper wire bobbins inspected before stranding at the TEBAOFLEX factory

Raw Material Inspection

Every batch of copper rod, rubber compound and reinforcing material is checked before it reaches the line.

  • Copper: conductor resistance, elongation and surface condition on incoming rod and drawn wire
  • EPR, CPE, PUR and silicone compounds: hardness, tensile strength, elongation and ageing samples from each mix
  • Suppliers and batch numbers are recorded so every drum can be traced back to its materials
Operator monitoring an extrusion line control panel in the TEBAOFLEX workshop

Manufacturing Process Control

Stranding, insulation extrusion, core assembly and sheathing run under recorded process parameters.

  • Class 5/6 stranding with lay length and tension monitored for trailing and reeling flexibility
  • Continuous-vulcanisation extrusion with wall thickness and spark tests logged on every length
  • Operators sign off each stage before the cable moves to the next machine
3.5 kV voltage withstand test station in the TEBAOFLEX laboratory

Electrical Testing

Finished lengths go through the routine tests required by the referenced VDE, ICEA, IEC or NEK standard.

  • Conductor resistance and insulation resistance on every length
  • Voltage withstand (3.5 kV and higher) and partial-discharge measurement in the shielded HV laboratory
  • Screen and pilot-core continuity checks for mining and reeling constructions
Tensile testing machine for conductor and sheath samples

Mechanical and Ageing Tests

Samples from production are tested for the duty a mining, crane or submersible cable will actually see.

  • Tensile strength and elongation of insulation and sheath before and after ageing
  • Hot-set, ozone, oil-immersion and low-temperature bending tests
  • Constant-temperature water bath for insulation resistance of submersible constructions
Single-cable vertical flame test chamber

Flame Test and Final Inspection

Before packing, the cable is checked against the order and the flame-performance requirement of its standard.

  • Single-cable vertical flame test to IEC 60332-1-2 where specified
  • Metre marking, printing, drum length and appearance inspection
  • Test report and packing list issued with every shipment

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UL 3266 XLPE Wire 125°C 300V, Low-Smoke Non-Halogen, 10–30 AWGGet A Quote