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Product

power connection cable series(N)TMCHXOEU Wind Loop 1C0.6/1 kV · 1.8/3 kV · 3.6/6 kV±150°/m Torsion + LSZH ('HX')

(N)TMCHXOEU Single-Core LSZH Wind-Turbine MV CableDIN VDE 0250-813 0.6/1 kV & 1.8/3 kV ±150°/m torsion-resistant LSZH wind power cable

(N)TMCHXOEU Single-Core LSZH Wind-Turbine Power Cable (0.6/1 kV, 1.8/3 kV & 3.6/6 kV; 35 mm² to 400 mm²) engineered per DIN VDE 0250-813 and IEC 61400 for generator-to-converter and nacelle-to-tower loop power transmission—combining.

±150°/m @ -40 °C Loop Torsion
IEC 60332-3-24 & LSZH ('HX')
Gearbox/Hydraulic Oil Proof
VDE 0250-813 / Wind Approved
Order designation
(N)TMCHXOEU 1×240 1.8/3kV
Conductor & voltage
1 × 240 mm² Torsion Cl.5 Cu · 1.8/3 kV
Outer Ø ≈
31.4 mm
Weight ≈
2,510 kg/km
Ampacity (air 30°C)
680 A
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standards
DIN VDE 0250-813
& IEC 60332-3-24 / IEC 60754-2
Voltage classes
0.6/1 to 3.6/6 k
690 V, 1000 V, 1.8/3 & 3.6/6 kV
Cross-sections
1 × 35 to 400 mm
Torsion-lay Class 5/6 Cu
Torsion rating
±150° / m
≥ 15,000 yaw cycles (-40 °C)
Insulation
3GI3 EPR (+90 °C
+250 °C short-circuit rating
Outer sheath
HX-OEU Halogen-F
Low-smoke zero-halogen elastomer

Typical values for this cable type, based on DIN VDE 0250-813 / IEC 60502-1 / UL 2277 (Wind Turbine Tray Cable) — confirmed in the datasheet and quotation for your order.

Application fit

Is (N)TMCHXOEU right for your machine?

Purpose-built for wind turbines where multiple parallel single-core power cables drop in a free-hanging torsion bundle from the 690 V / 1,140 V / 3.3 kV generator and frequency converter in the nacelle down the tower to the base transformer.

Free-hanging vertical run

Suitable

Bidirectional torsion-stabilized copper stranding and sliding fleece tape endure ±150°/m twist over 10–15 m vertical nacelle drip.

TBM gantry & advancing tunnel reel

Suitable

Halogen-free ('HX') cross-linked elastomer jacket satisfies IEC 60332-3-24 vertical bunched fire, IEC 60754-2 zero acid gas and IEC.

Motor stator, traction & converter leads

Suitable

Handles high-frequency PWM inverter dV/dt spikes between DFIG / permanent-magnet generators, active crowbars and back-to-back IGBT.

Fixed installation

Suitable

Routes from the dynamic nacelle loop directly into fixed tower wall cleats and cabinet busbars without intermediate transition splices.

Typical machinesOnshore & Offshore Wind Turbine Nacelle Drip Loops690 V / 1140 V / 3.3 kV Wind Generator Stator/Rotor LeadsFull-Scale & DFIG Converter-to-Transformer Bus BundlesTower-Wall Vertical Drop Power DistributionNacelle Yaw Motor & Pitch System Power Jumpers

Construction

Layer by layer

(N)TMCHXOEU Single-Core LSZH Wind-Turbine Cable showing torsion-optimized Class 5/6 tinned or bare copper conductor, non-woven sliding separator tape, inner semiconducting elastomer layer ('C'), +90 °C 3GI3 ozone-resistant EPR insulation, and Black halogen-free ('HX') oil- and flame-resistant ('OEU') elastomer outer sheath.

1234
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Torsion-optimized Class 5 / Class 6 copper conductorAnnealed tinned or bare flexible copper wires stranded with reverse-lay torsion-balanced pitch (35 mm² to 400 mm²)Absorbs ±4 full nacelle revolutions over a 10 m loop without copper bird-caging
2Sliding separator tape + inner semiconducting layer ('C')Low-friction non-woven sliding fleece + extruded semiconducting elastomer stress-equalizing layer ('C' on 1.8/3 & 3.6/6 kV)Withstands PWM converter voltage spikes and allows internal strand slip during twist
33GI3 Ethylene Propylene Rubber (EPR) dielectric90 °C ozone-, corona- and heat-resistant thermoset EPR compound Type 3GI3 per DIN VDE 0207-20High dielectric endurance under IGBT converter switching harmonics
4HX-OEU Halogen-Free, Oil- & Flame-Resistant elastomer sheathHeavy-duty cross-linked halogen-free elastomer ('HX') with oil resistance ('OEU') in UV-stabilized BlackPasses IEC 60332-3-24 Cat C vertical tray fire, IEC 60754-2 and -40 °C cold torsion

(N)TMCHXOEU 1.8/3 kV (1×70 to 1×400 mm²)

Standard 1.8/3 kV (Umax 3.6 kV) single-core torsion-resistant LSZH wind loop cable for 690 V, 950 V and 1,140 V PWM converter systems

(N)TMCHXOEU 3.6/6 kV (1×50 to 1×300 mm²)

3.6/6 kV (Umax 7.2 kV) single-core torsion-resistant LSZH wind loop cable for 3.3 kV and 4.16 kV medium-voltage wind generators

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on DIN VDE 0250-813 / IEC 60502-1 / UL 2277 (Wind Turbine Tray Cable). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage tiers (Uo/U)
0.6/1 kV · 1.8/3 kV · 3.6/6 kV (Umax 1.2 / 3.6 / 7.2 kV AC)
Routine AC test voltage
4.0 kV (0.6/1) · 6.5 kV (1.8/3) · 11.0 kV (3.6/6) for 5 minutes
Max. DC resistance @ 20 °C
0.206 Ω/km (95) · 0.129 Ω/km (150) · 0.0817 Ω/km (240) · 0.0654 Ω/km (300)
Free-air ampacity (30 °C)
375 A (95) · 500 A (150) · 570 A (185) · 680 A (240) · 785 A (300)

Thermal

Continuous conductor temp.
+90 °C continuous operation
Short-circuit temperature
+250 °C (up to 5 s)
Ambient temperature range
-40 °C to +80 °C (dynamic loop torsion & fixed tower)

Mechanical

Torsion rating
±150° / m over free-hanging nacelle drip loop (≥ 15,000 cycles)
Min. bend radius
4 × OD (static tower cleats) · 6 × OD (dynamic nacelle loop)
Max. vertical tensile load
15–20 N / mm² of copper cross-section

Resistance

Bunched flame & LSZH
IEC 60332-3-24 Cat C · IEC 60754-1/2 (0 % halogen) · IEC 61034-2
Hydraulic & gearbox oil
EN 60811-404 hot mineral & synthetic turbine oil resistant ('OEU')
Ozone, UV & salt mist
Ozone proof per DIN VDE 0207-20 and marine salt-fog resistant

Reference standards

Design standards
DIN VDE 0250-813 · IEC 60502-1 · UL 2277 WTTC option available
Fire & smoke standards
IEC 60332-1-2, IEC 60332-3-24, IEC 60754-2 & IEC 61034-2
RoHS, REACH & CE
2011/65/EU RoHS 2, REACH & CE compliant

Identification

VDE code breakdown
(N)TM=MV rubber · C=Semicon · HX=Halogen-free · OEU=Oil & flame
Outer sheath colour
Black (UV-stabilized)
Customs tariff (HS)
8544.4993 (≤ 1 kV) · 8544.6010 (> 1 kV)

Sizes

6 standard (N)TMCHXOEU 1.8/3 kV Single-Core LSZH Wind-Turbine configurations

Cross-section, outer diameter, weight, DC resistance and DIN VDE 0298-4 free-air ampacity (30 °C).

1.8/3 kV dimensions, weight & ampacity
VDE designationConductor & voltageOuter Ø ≈
mm		Weight ≈
kg/km		Max. DC R
Ω/km		Air 30°C
A		Enquiry
1.8/3 kV (Umax 3.6 kV) Single-Core Torsion-Resistant LSZH Wind Cables
(N)TMCHXOEU 1×70 1.8/3kV1 × 70 mm² Torsion Cl.5 Cu · 1.8/3 kV19.68200.2770305
(N)TMCHXOEU 1×95 1.8/3kV1 × 95 mm² Torsion Cl.5 Cu · 1.8/3 kV21.81,0700.2060375
(N)TMCHXOEU 1×150 1.8/3kV1 × 150 mm² Torsion Cl.5 Cu · 1.8/3 kV25.81,6100.1320500
(N)TMCHXOEU 1×185 1.8/3kV1 × 185 mm² Torsion Cl.5 Cu · 1.8/3 kV28.01,9500.1080570
(N)TMCHXOEU 1×240 1.8/3kV1 × 240 mm² Torsion Cl.5 Cu · 1.8/3 kV31.42,5100.0817680
(N)TMCHXOEU 1×300 1.8/3kV1 × 300 mm² Torsion Cl.5 Cu · 1.8/3 kV34.63,1100.0654785
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Also stocked in 35 mm², 50 mm², 120 mm² and 400 mm², as well as 0.6/1 kV (H07RN-F / NSGAFÖU wind upgrade) and 3.6/6 kV ratings.

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
100 % 6.5 kV / 11 kV AC dielectric withstand & DC resistance testZero breakdown for 5 minutes and DC R within IEC 60228 limitsEvery manufactured drum
Sample tests
15,000-cycle ±150°/m bidirectional loop torsion test (-40 °C to +90 °C)Zero copper strand break, zero jacket crack and passes post-torsion HV testWind turbine qualification
IEC 60332-3-24 Cat C vertical tray fire, IEC 60754-2 & hot oil testChar height ≤ 2.5 m, pH ≥ 4.3, conductivity ≤ 10 µS/mmType qualification

Inspection certificate

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

Product approvals

DIN VDE 0250-813 CompliantIEC 60332-3-24 & IEC 60754-2IEC 61400 Wind Qualified

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX (N)TMCHXOEU 1x240 1.8/3kV WIND TORSION LSZH VDE 0250-813 IEC 60332-3-24 CE
Delivery form
Fumigated wooden drums or steel export reels
Standard lengths
500 m · 1000 m (or custom cut lengths)
MOQ
100 m (standard) · 500 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDF(N)TMCHXOEU Single-Core LSZH Wind-Turbine MV Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSX(N)TMCHXOEU spec data (Excel)All 6 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 do 690 V and 950 V wind turbine generator/converter circuits use 1.8/3 kV rated (N)TMCHXOEU instead of a 0.6/1 kV cable?
Fast-switching IGBT frequency converters and rotor crowbar circuits in DFIG and full-converter wind turbines generate repetitive steep-front voltage reflections (dV/dt peaks reaching 2,200–2,800 V phase-to-earth). Using a 1.8/3 kV cable with an extruded inner semiconducting conductor stress screen ('C') and heavier 3GI3 EPR wall prevents premature partial-discharge aging inside the nacelle loop.
How does (N)TMCHXOEU differ from standard NSGAFÖU 1.8/3 kV?
Standard NSGAFÖU uses a chlorinated polychloroprene (5GM3) outer rubber sheath and standard Class 5 stranding intended for fixed cabinet wiring. (N)TMCHXOEU upgrades both the stranding (to torsion-balanced reverse-lay copper qualified for ±150°/m at -40 °C) and the outer sheath (to a halogen-free low-smoke 'HX-OEU' elastomer passing IEC 60332-3-24 bunched fire testing inside wind towers).
How many parallel single-core (N)TMCHXOEU cables are typically bundled in a wind turbine drip loop?
On a 3–5 MW wind turbine with a 690 V or 1,140 V generator and tower-base transformer/converter, typically 3 to 6 parallel cables per phase (9 to 18 single-core 185–300 mm² cables in total) hang through elastomeric spacer discs in the upper tower torsion loop.
When should we switch from single-core (N)TMCHXOEU to three-core (N)TSCGEHXOEU?
Use single-core (N)TMCHXOEU for 0.6/1 kV, 1.8/3 kV and 3.6/6 kV generator/converter loops. When the step-up transformer is inside the nacelle and the loop voltage is 12/20 kV, 18/30 kV, 20/35 kV or 38/66 kV, use screened three-core (N)TSCGEHXOEU.

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(N)TMCHXOEU Single-Core LSZH Wind-Turbine MV Cable

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Reel & motion:
- Reel type: 
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