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power connection cable series26/45 kV (Umax 52 kV) Rail(N)TMCWOEU Pantograph Lead25 kV AC / 15 kV 16.7 Hz Roof

(N)TMCWOEU 26-45 kV 26/45 kV Railway Pantograph Connection Cable26/45 kV (Umax 52 kV) unscreened flexible 25 kV AC railway roof pantograph cable

(N)TMCWOEU 26-45 kV Railway Pantograph Connection Cable (26/45 kV, Umax 52 kV; 50 mm² to 185 mm²) engineered per DIN VDE 0250-813, EN 50264 and EN 45545-2 for 25 kV AC 50/60 Hz and 15 kV 16.7 Hz high-speed trains, electric locomotives.

5 × OD Roof Jumper Flex
-40 °C & 350 km/h Aerodynamic
EN 45545-2 Railway Fire
DIN VDE 0250-813 / EN 50264
Order designation
(N)TMCWOEU 1×95 26/45kV
Conductor & EPR wall
95 mm² Cl.5 Tinned Cu · 11.5 mm EPR
Outer Ø ≈
44.6 mm
Weight ≈
2,480 kg/km
Ampacity (air 30°C)
375 A
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standards
VDE 0250-813 / E
& EN 45545-2 Railway Fire
Rated voltage
26 / 45 kV AC
Umax 52 kV (for 25 kV AC catenary)
Cross-sections
1 × 50 to 185 mm
Class 5 / Class 6 tinned Cu
EPR wall thickness
11.5 mm (3GI3 EP
65 kV AC factory test voltage
Cold flexibility
-40 °C to +90 °C
High-altitude winter roof duty
Outer sheath
5GM3 / HX Elasto
Ozone, UV, ballast & oil proof

Typical values for this cable type, based on DIN VDE 0250-813 / EN 50264 / EN 45545-2 / IEC 60077 — confirmed in the datasheet and quotation for your order.

Application fit

Is (N)TMCWOEU 26-45 kV right for your machine?

Installed on the exposed roof of 25 kV AC and 15 kV AC electric locomotives and high-speed trainsets to connect the pantograph base frame, Vacuum Circuit Breaker (VCB), surge arrester and roof bushing of the main traction transformer.

Motor stator, traction & converter leads

Suitable

Unscreened 26/45 kV design mounts on porcelain/silicone roof stand-off insulators and bolts directly to pantograph and VCB studs.

Trailing & towing

Suitable

Absorbs continuous pantograph frame vibration, coach body oscillation and 300+ km/h aerodynamic wind buffeting without copper fatigue.

Immersion & wet locations

Suitable

Formulated for extreme roof exposure: intense catenary arc ozone, solar UV, freezing rain, tunnel soot, transformer oil and -40 °C.

TBM gantry & advancing tunnel reel

With conditions

Unscreened roof jumper mounted on stand-off insulators; where the 25 kV cable passes through an earthed roof conduit or inter-car.

Use Screened 26/45 kV Rail Cable
Typical machines25 kV AC 50 Hz High-Speed Rail (TGV / ICE / CRH / Velaro)15 kV 16.7 Hz & 25 kV Freight/Passenger Electric LocomotivesSuburban EMU & Regional Bi-Mode (BMU) Roof High-VoltagePantograph-to-VCB & Roof Surge Arrester Flexible JumpersRailway Traction Substation & Test-Track HV Leads

Construction

Layer by layer

(N)TMCWOEU 26-45 kV Railway Pantograph Connection Cable showing Class 5 (or Class 6) fine-stranded tinned copper conductor, extruded inner semiconducting elastomer stress screen ('C'), heavy-wall 11.5 mm 3GI3 ozone-resistant EPR high-voltage dielectric, and Black or Red weather/oil/flame-resistant 5GM3 elastomer ('WOEU') outer sheath.

1234
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Class 5 / Class 6 fine-stranded tinned copper conductorElectrolytic tin-coated annealed flexible copper wires per IEC 60228 Class 5 or Class 6 (50, 70, 95, 120, 150, 185 mm²)Isolates porcelain/composite VCB and transformer bushings from pantograph vibration
2Extruded inner semiconducting elastomer layer ('C')Vulcanized semiconducting rubber layer bonded over the stranded conductorEliminates strand-surface corona discharge under 27.5–52 kV catenary voltage peaks
311.5 mm 3GI3 High-Voltage EPR dielectric insulationExtra-thick (~11.5 mm nominal wall) ozone- and corona-resistant +90 °C EPR compound Type 3GI3Withstands 65 kV AC routine testing and 250 kV lightning impulse transients
45GM3 ('WOEU') weather-, ozone- & oil-resistant outer sheath3.0–3.5 mm cross-linked polychloroprene / chlorosulfonated elastomer Type 5GM3 (or halogen-free HX compound) in Black or RedResists catenary arc ozone, UV radiation, flying track ballast and IEC 60332-1-2 flame

(N)TMCWOEU 26/45 kV (1×50, 1×70, 1×95 mm²)

Standard roof pantograph-to-VCB flexible HV jumper for 25 kV AC EMUs and regional electric trainsets (200–430 A)

(N)TMCWOEU 26/45 kV (1×120, 1×150, 1×185 mm²)

Heavy-duty roof HV connection cable for 6–9 MW freight locomotives and 350 km/h high-speed power cars (490–660 A)

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on DIN VDE 0250-813 / EN 50264 / EN 45545-2 / IEC 60077. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage (Uo/U / Umax)
26 / 45 kV AC (Umax = 52 kV AC) for 25 kV AC catenary systems
Routine AC test voltage
65 kV AC rms for 5 minutes (2.5 × Uo)
Max. DC resistance @ 20 °C
0.393 Ω/km (50) · 0.277 Ω/km (70) · 0.206 Ω/km (95) · 0.132 Ω/km (150)
Free-air ampacity (30 °C)
250 A (50) · 310 A (70) · 375 A (95) · 435 A (120) · 505 A (150)

Thermal

Continuous conductor temp.
+90 °C continuous operation
Short-circuit temperature
+250 °C (up to 5 s)
Operating ambient range
-40 °C to +80 °C (down to -50 °C cold-resistant K option)

Mechanical

Nominal 3GI3 EPR wall
11.5 mm nominal HV dielectric wall + 3.0–3.5 mm outer sheath
Min. bend radius
5 × OD (fixed on roof insulators) · 10 × OD (dynamic pantograph flex)
Shock & vibration
Qualified for rolling-stock roof vibration per IEC 61373 Cat 1 Class B

Resistance

Catenary arc ozone proof
Passes DIN VDE 0207-20 high-concentration ozone test without cracking
Oil, transformer fluid & UV
EN 60811-404 mineral/ester transformer oil & UV weather resistant
Railway fire safety
IEC 60332-1-2 & EN 45545-2 exterior roof compliance

Reference standards

Design standards
DIN VDE 0250-813 · EN 50264 / EN 50382 principles
Traction voltage standard
EN 50163 / IEC 60850 (25 kV AC: Umin 17.5 kV, Unom 25 kV, Umax2 29 kV)
RoHS, REACH & CE
2011/65/EU RoHS 2, REACH & CE compliant

Identification

VDE designation
(N)TMCWOEU 1×... 26/45 kV
Outer sheath colour
Black (UV-stabilized) or High-Voltage Red
Customs tariff (HS)
8544.6010

Sizes

6 standard (N)TMCWOEU 26/45 kV (Umax 52 kV) Railway Pantograph Cable sizes

Cross-section, EPR & sheath walls, nominal outer diameter, weight and free-air ampacity.

26/45 kV dimensions, weight & ampacity
VDE designationConductor & EPR wallOuter Ø ≈
mm		Weight ≈
kg/km		Max. DC R
Ω/km		Air 30°C
A		Enquiry
26/45 kV (Umax 52 kV) Unscreened Railway Pantograph Cables
(N)TMCWOEU 1×50 26/45kV50 mm² Cl.5 Tinned Cu · 11.5 mm EPR40.51,7800.3930250
(N)TMCWOEU 1×70 26/45kV70 mm² Cl.5 Tinned Cu · 11.5 mm EPR42.42,0900.2770310
(N)TMCWOEU 1×95 26/45kV95 mm² Cl.5 Tinned Cu · 11.5 mm EPR44.62,4800.2060375
(N)TMCWOEU 1×120 26/45kV120 mm² Cl.5 Tinned Cu · 11.5 mm EPR46.82,8600.1640435
(N)TMCWOEU 1×150 26/45kV150 mm² Cl.5 Tinned Cu · 11.5 mm EPR48.83,2900.1320505
(N)TMCWOEU 1×185 26/45kV185 mm² Cl.5 Tinned Cu · 11.5 mm EPR51.23,7900.1080580
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • All sizes undergo a 100 % 65 kV AC 5-minute routine dielectric test prior to dispatch.

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 % 65 kV AC (50 Hz, 5 min) dielectric withstand & DC resistance testZero dielectric breakdown across full 26/45 kV insulation wallEvery manufactured cable length
Sample tests
-40 °C cold bend, transformer oil immersion & EN 45545-2 flame testZero cracking at -40 °C and compliant with railway fire safetyPer production batch
200–250 kV BIL lightning impulse & high-concentration ozone testZero impulse flashover and zero ozone cracking on bent samplesType qualification

Inspection certificate

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

Product approvals

DIN VDE 0250-813 (26/45 kV)EN 45545-2 Railway FireEN 50163 / IEC 60850 25 kV AC

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX (N)TMCWOEU 1x95 26/45kV VDE 0250-813 RAILWAY HV 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)TMCWOEU 26-45 kV 26/45 kV Railway Pantograph Connection Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSX(N)TMCWOEU 26-45 kV 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 25 kV AC railway pantograph cables specify a 26/45 kV (Umax 52 kV) voltage rating?
On a single-phase 25 kV AC overhead catenary system (EN 50163), the phase-to-earth voltage Uo is 25 kV nominal, rising to 27.5 kV continuous and 29 kV for 5 minutes during regenerative braking—plus steep Vacuum Circuit Breaker (VCB) switching transients and pantograph bounce arcs. Therefore, a standard 18/30 kV cable (Uo = 18 kV) is under-rated; railway standards mandate the 26/45 kV class (Uo = 26 kV, U = 45 kV, Umax = 52 kV, routine tested at 65 kV AC).
When is unscreened (N)TMCWOEU 26-45 kV used on a train roof versus screened (N)TMCGCHXOEUK 26-45 kV?
Unscreened (N)TMCWOEU 26-45 kV is used for short, open-air roof jumpers (typically 0.8 to 2.5 m) between the pantograph horn/frame, roof disconnectors and VCB supported on stand-off post insulators, where there is no space for 500 mm HV stress-control terminations. When the 25 kV HV line runs directly along the earthed carbody roof, through roof ducts, between coaches, or down into the underframe main transformer, screened (N)TMCGCHXOEUK 26-45 kV is mandatory for touch safety and radial field confinement.
Why is a flexible cable used on the train roof instead of rigid copper busbars?
The pantograph base frame is mounted on pneumatic/elastomeric insulators and vibrates continuously while tracking the overhead contact wire at 160–350 km/h. A flexible Class 5/6 tinned copper jumper decouples this mechanical vibration from the brittle porcelain or composite bushings of the Vacuum Circuit Breaker and roof transformer lead-through.
Can we order this cable in a halogen-free EN 45545-2 HL3 version?
Yes. Both unscreened (N)TMCHXOEU 26/45 kV and screened (N)TMCGCHXOEUK 26/45 kV are manufactured with halogen-free 'HX' elastomer sheaths certified to EN 45545-2 HL3.

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(N)TMCWOEU 26-45 kV 26/45 kV Railway Pantograph Connection Cable

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