Cable Specification Sheet UL WTTC / TC-ER reference · Rev 01 · 2026-06

WTTC · 7 core 12 AWG / 3.31 mm²

Name: WTTC · 7 core 12 AWG / 3.31 mm²
Brand: UE Cable
SKU: wttc-600-v-1000-v-wind-turbine-tray-cable-wind-turbine-tray-7-core-12-awg-3-31-mm2

Ordering reference WTTC · 7 core 12 AWG / 3.31 mm²

UL WTTC / TC-ER reference WTTC

Application

Wind turbines · Nacelle wiring · Tower tray routes · Drip loops

Indicative 7-core construction — copper conductor, not to scale

Construction

1
Conductor (per core)Fine stranded bare copper conductor · 56 × Ø0.27 mm · IEC 60228 cl.5
2
Core insulationPVC nylon or TPE insulation
3
FillerPP filler
4
SheathOil, sunlight and torsion resistant tray jacket

Technical parameters

Tray cable dutyWind turbine tray cable

Circuit typeWind turbine tray

Core / pair design7 core

Conductor size12 AWG / 3.31 mm²

Voltage class600 V / 1000 V

Max DC resistance at 20 °C5.59 Ω/km

OD guide15.3 mm

Conductor materialFine stranded bare copper conductor

Operating temperature−40 °C to +90 °C

Cable weight0.51 kg/m

Bend radius6 x OD fixed / torsion route by turbine design

Outer sheathOil, sunlight and torsion resistant tray jacket

Current rating (guide)≈ 40 A (Cu, multicore clipped, 30 °C — IEC 60364-5-52 guide)

Routine test voltage2.5 kV a.c. 5 min

Ratings & materials

StandardUL WTTC / TC-ER reference

Voltage class600 V / 1000 V

Temperature class90 °C to 105 °C guide

UE Cable · China sales@uecable.com

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