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Product

Control & signal cableDIN VDE 0816 / DB 416.0115Star-Quad 0.9 / 1.2 / 1.4 mmAl/PE Barrier + Steel Armour (B)

A-2Y(L)2Y2YB2Y Railway Armoured Signalling and Telecom CableDIN VDE 0816 / DB star-quad railway signalling cable with Al/PE barrier & steel armour

A-2Y(L)2Y2YB2Y railway armoured signalling and telecom cable (DIN VDE 0816 / DB 416.0115) with solid copper star-quads (0.9, 1.2, 1.4 mm), 2Y PE insulation, '(L)2Y' Al/PE moisture barrier, 2Y PE bedding, double steel tape armour ('B'), and 2Y HDPE jacket.

EMC screen
Outdoor & humid
Ozone, UV & moisture
Water-resistant
Order designation
A-2Y(L)2Y2YB2Y 4×4×0.9
Outer Ø ≈
18.20 mm
Wall thickness
2.00 mm
Total weight ≈
445.0 kg/km
Min. bend R (fixed)
275 mm
All sizes (12)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Quad conductor
0.9–1.4 mm Cu
Solid bare Cu star-quads (x4)
Mutual cap.
≤ 52 nF/km
At 800 Hz (0.9 / 1.4 mm quads)
Moisture barrier
(L)2Y + 2Y
Al/PE laminated sheath + PE bed
Armouring (B)
2 × steel tape
Double galvanised steel tape
Test voltage
2500 V AC
Core-to-core & core-to-screen
Buried temp.
-40…+70 °C
-20…+50 °C during laying

Typical values for this cable type, based on DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom Specification — confirmed in the datasheet and quotation for your order.

Application fit

Is A-2Y(L)2Y2YB2Y right for your machine?

Select A-2Y(L)2Y2YB2Y for direct-buried trackside troughs, point-machine interlocking lines, and railway telecommunications requiring double PE inner sheaths and rodent-proof steel tape armour.

Fixed installation

Suitable

Double steel tape armour ('B') and extra extruded 2Y PE bedding protect direct-buried and trough-routed railway links.

Immersion & wet locations

Suitable

Bonded '(L)2Y' aluminum-PE inner sheath plus a second 2Y PE bedding layer forms a complete radial moisture barrier.

Typical machinesMainline & Regional Railway SignallingPoint Machine & Interlocking LinksLevel-Crossing Control CircuitsTrackside Concrete Trough & Direct BurialMetro & Light-Rail Wayside Telecoms

Construction

Layer by layer

DIN VDE 0816 / DB construction: solid copper conductors twisted into star-quads, 2Y PE insulation, (L)2Y Al/PE laminated inner sheath, 2Y PE intermediate bedding sheath, double galvanised steel tape armour (B), and black 2Y HDPE outer jacket.

123456
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Solid bare copper star-quadsAnnealed solid bare copper wire (0.9 mm, 1.2 mm, or 1.4 mm diameter) twisted in 4-wire star-quadsLow loop resistance and balanced quad geometry for low crosstalk over multi-kilometre blocks
22Y polyethylene core insulationSolid polyethylene (2Y) with VDE 0816 ring-marked quad identificationHigh insulation resistance (≥ 5,000 MΩ·km) and ≤ 52 nF/km operating capacitance
3(L)2Y aluminum-laminated inner sheathLongitudinally overlapped copolymer-coated aluminum tape fused to an extruded PE inner sheath100 % radial water-vapour barrier and electrostatic screen
42Y PE intermediate bedding sheathSecond extruded polyethylene sheath over the (L)2Y barrierDielectric isolation and heavy mechanical cushion beneath the steel tape armour
5Double steel tape armour (B)Two helically applied galvanised steel tapes (0.2–0.5 mm thick)Protects against ballast stone crushing, shovel strikes, and rodent attack
62Y black HDPE outer sheathCarbon-black UV-stabilised high-density polyethylene outer jacketTough, low-friction outer skin for direct burial and trackside cable troughs

A-2Y(L)2Y2YB2Y n×4×0.9 mm

0.9 mm railway star-quad telecom and interlocking cable (≤ 56.6 Ω/km loop resistance)

A-2Y(L)2Y2YB2Y n×4×1.4 mm

1.4 mm long-distance railway signalling and point-control quad cable (≤ 23.4 Ω/km loop)

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom Specification. Values for your order are confirmed in the datasheet and quotation.

Electrical

Loop resistance (+20 °C)
≤ 56.6 Ω/km (0.9 mm) · ≤ 23.4 Ω/km (1.4 mm)
Mutual capacitance (800 Hz)
≤ 52 nF/km (typical 48–50 nF/km)
Insulation resistance
≥ 5,000 MΩ·km at +20 °C
AC dielectric test voltage
2,500 V AC (core/core & core/screen)

Thermal

Operating temperature (fixed)
-40 °C to +70 °C
Installation temperature
-20 °C to +50 °C

Mechanical

Quad formation
Star-quads laid in concentric layers/units
Armouring
Double galvanised steel tape ('B')
Min. bending radius
15 × overall cable diameter
Max. pulling tension
50 N/mm² of total copper cross-section

Resistance

Radial moisture barrier
Al/PE laminated sheath (L)2Y + 2Y PE bed
Rodent & ballast impact
Double steel tape armour + HDPE jacket
UV & ground corrosion
Carbon-black stabilised PE (EN 50290-2-23)

Reference standards

Primary specifications
DIN VDE 0816 & DB TL 416.0115
Core identification
DIN VDE 0816 railway star-quad ring code
RoHS & REACH
RoHS 3 & REACH compliant

Identification

Outer sheath colour
Black (RAL 9005) with handset symbol
Surface legend
TEBAOFLEX A-2Y(L)2Y2YB2Y [n×4×d] VDE 0816 [year] [m]
Customs tariff (HS)
8544.49

Sizes

12 standard configurations (A-2Y(L)2Y2YB2Y)

Engineering dimensions, conductor stranding, mass and electrical ratings for A-2Y(L)2Y2YB2Y per DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom Specification.

Dimensions & weights
Order designationCross-section / sizeConductor buildWall ≈
mm		Outer Ø ≈
mm		Metal
kg/km		Weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
Standard A-2Y(L)2Y2YB2Y configurations
A-2Y(L)2Y2YB2Y 1×4×0.91×4×0.9Solid / Stranded Cu1.4913.50105.6240.0205
A-2Y(L)2Y2YB2Y 2×4×0.92×4×0.9Solid / Stranded Cu1.7616.00145.2330.0240
A-2Y(L)2Y2YB2Y 4×4×0.94×4×0.9Solid / Stranded Cu2.0018.20195.8445.0275
A-2Y(L)2Y2YB2Y 6×4×0.96×4×0.9Solid / Stranded Cu2.2520.50246.4560.0310
A-2Y(L)2Y2YB2Y 10×4×0.910×4×0.9Solid / Stranded Cu2.6223.80334.4760.0360
A-2Y(L)2Y2YB2Y 14×4×0.914×4×0.9Solid / Stranded Cu2.9226.50418.0950.0400
A-2Y(L)2Y2YB2Y 20×4×0.920×4×0.9Solid / Stranded Cu3.3230.20545.61,240.0455
A-2Y(L)2Y2YB2Y 1×4×1.41×4×1.4Solid / Stranded Cu1.7415.80154.0350.0240
A-2Y(L)2Y2YB2Y 2×4×1.42×4×1.4Solid / Stranded Cu2.1119.20224.4510.0290
A-2Y(L)2Y2YB2Y 4×4×1.44×4×1.4Solid / Stranded Cu2.4222.00316.8720.0330
A-2Y(L)2Y2YB2Y 6×4×1.46×4×1.4Solid / Stranded Cu2.7925.40422.4960.0380
A-2Y(L)2Y2YB2Y 10×4×1.410×4×1.4Solid / Stranded Cu3.3030.00607.21,380.0450
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Outer diameters and weights are nominal engineering values for A-2Y(L)2Y2YB2Y subject to standard manufacturing tolerances per DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom Specification.

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
Dielectric spark / high-voltage withstand test100 % in-line spark and AC/DC dielectric withstand per DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom SpecificationEvery manufactured length
Conductor DC resistance & continuity checkWithin maximum 20 °C resistance limit specified for A-2Y(L)2Y2YB2YEvery spool or drum length
Sample tests
Insulation resistance & dimensional verificationWall thickness, concentricity and insulation resistance per DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom SpecificationPer production batch
Environmental, mechanical & EMC qualificationQualified to DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom Specification thermal, mechanical and environmental performance criteriaType qualification

Inspection certificate

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

Product approvals

DIN VDE 0816 / DB 416.0115 Railway Star-Quad Signalling & Telecom SpecificationCE (2014/35/EU) & RoHS 3 (2015/863/EU) CompliantREACH SVHC Compliance Verified

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX A-2Y(L)2Y2YB2Y 4x4x0.9 St I VDE 0816 DB RAILWAY SIGNALLING
Delivery form
Export wooden drums, tactical reels or coils
Standard lengths
100 m · 500 m · 1000 m (or custom cut lengths)
MOQ
100 m (stock sizes) · 300–500 m (custom build)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFA-2Y(L)2Y2YB2Y Railway Armoured Signalling and Telecom Cable – technical datasheet12 sizes · construction, technical data, approvalsXLSXA-2Y(L)2Y2YB2Y spec data (Excel)All 12 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.

What does every element of the designation A-2Y(L)2Y2YB2Y mean?
'A' = outdoor telecommunication/signalling cable (Außenkabel), '2Y' = polyethylene core insulation, '(L)2Y' = aluminum-laminated polyethylene moisture-barrier inner sheath, '2Y' = second extruded polyethylene bedding sheath, 'B' = double galvanised steel tape armour (Bewehrung), and '2Y' = polyethylene outer jacket.
Why does A-2Y(L)2Y2YB2Y have two '2Y' layers between the aluminum tape and the steel armour?
The first '(L)2Y' layer bonds the copolymer-coated aluminum moisture barrier into a sealed inner sheath, while the second extruded '2Y' PE layer forms a tough dielectric and mechanical cushion so the sharp edges of the double steel tape armour ('B') cannot puncture the aluminum barrier during trackside laying.
Why are railway signalling cables twisted in star-quads (n×4) rather than simple pairs?
Star-quad twisting places the two wires of Pair 1 diagonally opposite each other and Pair 2 on the perpendicular diagonal, achieving higher packing density and superior magnetic symmetry against trackside interference.
When should I choose 1.4 mm conductors over 0.9 mm conductors?
0.9 mm conductors (≤ 56.6 Ω/km loop resistance) are used for standard telecom, axle-counter data, and short interlocking circuits, whereas 1.4 mm conductors (≤ 23.4 Ω/km loop resistance) are chosen for longer-distance point-machine control and block signalling.

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A-2Y(L)2Y2YB2Y Railway Armoured Signalling and Telecom Cable

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