LiYCY Cable: Screened PVC Data and Control Cable, 0.14 to 1.5 mm²
LiYCY cable is a flexible screened multicore PVC cable for data, signal and control circuits in automation, instrumentation and process control: fine-stranded copper, DIN 47100 colour-coded cores, a tinned copper braid and a grey PVC sheath.
- ConductorBare Cu, fine-stranded, Class 5
- Insulation / sheathPVC / PVC, grey RAL 7032
- ScreenTinned copper braid
- Core coloursDIN 47100
- Typical sizes0.14 mm² to 1.5 mm²
- Peak operating voltage350 V (0.14) / 500 V (≥0.25)
- Test voltage1.2 kV
- Temperature, flexing-5 °C to +70 °C
LiYCY is a flexible, screened multicore PVC cable for low-frequency data transmission, signal circuits, instrumentation and control systems. Fine-stranded Class 5 copper conductors with PVC insulation, coloured to DIN 47100, are stranded in layers, wrapped in foil and covered by a tinned copper braid and a grey PVC sheath. The braid limits electromagnetic interference in automation cabinets, measuring equipment, process-control panels and other installations where signals run close to drives and power wiring.
The name follows the German cable code: Li for a stranded (Litze) conductor, Y for PVC insulation, C for the copper braid screen and the final Y for the PVC sheath. LiYCY is a cable family rather than one fixed size. Core count and cross-section set the voltage, resistance, diameter and weight, so the typical-size table below is the starting point; send the cores, cross-section, length, installation motion and environment and TEBAOFLEX confirms the exact design.
Browse the PVC Control & Data Cable category for related cables.
Application & Features
Selection overview
LiYCY is selected for indoor dry or damp low-voltage signal and control installations: industrial automation and process control, instrumentation and measuring devices, sensors and encoders wired back to PLC input cards, computer and office equipment, scales, electronic assemblies and control panels. The braid screen reduces electromagnetic coupling from frequency converters, contactors and nearby power cables when it is terminated correctly at the cabinet entry or at the device.
Inside cabinets, LiYCY carries short, low-baud RS-232 and RS-485 links; a bus that runs hundreds of meters needs a 120 Ω data cable. See when LiYCY is enough for RS-485 and when a 120 Ω bus cable is needed. LiYCY is not a substitute for a power, reeling, mining trailing or heavy-duty outdoor cable, and it is built for fixed installation and occasional flexing, not for drag chains or continuous motion. For outdoor exposure, oil, water, high voltage or safety-critical circuits, confirm suitability with our engineers before ordering.
- Screened signal circuitsTinned copper braid over the whole core bundle for analogue, digital and low-frequency data signals near drives and contactors.
- Automation and instrumentationPLC inputs and outputs, sensors, encoders, measuring devices and process-control panels in dry and damp rooms.
- Traceable coresDIN 47100 colours without repetition, so every core of a multicore cable can be identified at both ends.
- Compact buildSmall overall diameters for crowded cabinets, cable ducts and EMC glands.
Specifications
Technical data
Typical values for LiYCY constructions. The final construction is confirmed on the TEBAOFLEX datasheet issued with your quotation.
Construction, electrical and installation data
| Parameter | Value |
|---|---|
| Design basis | VDE 0812 |
| Conductor | Bare copper, fine-stranded, IEC 60228 Class 5 (0.34 mm²: 7-wire) |
| Insulation | PVC compound TI2 to EN 50363-3 |
| Core identification | DIN 47100 colour code without colour repetition |
| Lay-up | Cores stranded in layers, plastic foil wrapping |
| Screen | Tinned copper braid, optical coverage typically 70 % to 85 % |
| Outer sheath | PVC compound TM2 to EN 50363-4-1, grey RAL 7032 |
| Peak operating voltage | 350 V for 0.14 mm²; 500 V for 0.25 mm² and larger (not for power circuits) |
| Test voltage | 1.2 kV |
| Mutual capacitance, core/core | approx. 120 nF/km |
| Inductance | approx. 0.65 mH/km |
| Temperature, occasional flexing | -5 °C to +70 °C |
| Temperature, fixed installation | -30 °C to +70 °C |
| Minimum bending radius | 6 × outer diameter fixed; 15 × outer diameter occasional flexing |
| Flame propagation | Flame retardant to IEC 60332-1-2 |
| Environment | Dry and damp indoor rooms |
Typical LiYCY sizes
| Cores × size | Approx. outer diameter | Approx. weight | Max. conductor resistance at 20 °C |
|---|---|---|---|
| 2 × 0.14 mm² | 4.0 mm | 20 kg/km | 148 Ω/km |
| 2 × 0.25 mm² | 4.0 mm | 30 kg/km | 80 Ω/km |
| 4 × 0.25 mm² | 4.5 mm | 40 kg/km | 80 Ω/km |
| 8 × 0.25 mm² | 6.0 mm | 65 kg/km | 80 Ω/km |
| 2 × 0.5 mm² | 5.0 mm | 35 kg/km | 39 Ω/km |
| 4 × 0.5 mm² | 6.0 mm | 55 kg/km | 39 Ω/km |
| 7 × 0.5 mm² | 7.0 mm | 80 kg/km | 39 Ω/km |
| 2 × 0.75 mm² | 5.5 mm | 45 kg/km | 26 Ω/km |
| 4 × 0.75 mm² | 6.5 mm | 70 kg/km | 26 Ω/km |
| 2 × 1.0 mm² | 6.0 mm | 75 kg/km | 19.5 Ω/km |
| 4 × 1.0 mm² | 7.0 mm | 110 kg/km | 19.5 Ω/km |
| 4 × 1.5 mm² | 8.0 mm | 130 kg/km | 13.3 Ω/km |
Selection note: before ordering, ask our engineers to confirm the peak voltage for the selected core size, the temperature range and bending radius for your installation and motion profile, the braid coverage, and the diameter, weight and conductor resistance of the exact construction. Other core counts and cross-sections are available on request.
Standards & References
Applicable standards and compliance
- Design referenceConstruction and electrical characteristics based on VDE 0812; VDE 0814 is a related reference for LiYCY designs.
- Conductor referenceBare copper conductors to DIN VDE 0295 / IEC 60228, flexible Class 5.
- Materials and colour codePVC insulation TI2 to EN 50363-3, PVC sheath TM2 to EN 50363-4-1, core colours to DIN 47100.
- Flame propagationIEC 60332-1-2 / EN 60332-1-2 single-cable flame test.
- ApprovalsTest reports, CPR classification and marking requirements are confirmed and quoted per order.
Construction
Material and build-up
LiYCY is a round multicore cable with an overall screen. The insulated cores are stranded in layers, held together by a foil wrapping, covered by a braid of tinned copper wires and finished with a PVC outer sheath. There is no individual pair screening; for twisted-pair data circuits the paired LiYCY (TP) design is used.
- Conductor: bare copper, fine-stranded to IEC 60228 Class 5 for flexibility; the 0.34 mm² size uses a 7-wire strand.
- Insulation: PVC compound TI2 to EN 50363-3, with core colours to DIN 47100 without colour repetition.
- Lay-up: cores stranded in layers and wrapped with a plastic foil that separates the core bundle from the braid.
- Screen: braid of tinned copper wires over the whole core bundle; tinning eases soldering and resists corrosion at the termination.
- Outer sheath: PVC compound TM2 to EN 50363-4-1, grey RAL 7032, flame retardant to IEC 60332-1-2.
FAQ
Selection questions
What does LiYCY mean?
LiYCY is a German cable code. Li stands for a stranded (Litze) conductor, Y for PVC core insulation, C for the copper braid screen and the second Y for the PVC outer sheath. The unscreened version without the braid is LiYY, and the paired version for data circuits is LiYCY (TP), in which the cores are twisted in pairs under the same braid.
Can LiYCY be used for RS-485?
For short, low-baud links inside a cabinet, yes. LiYCY is a general PVC control cable and is not a 120 Ω bus cable, so a bus that runs hundreds of meters or at higher baud rates needs a dedicated 120 Ω data cable. Our RS-485 cable guide explains when LiYCY is enough and when it is not.
How should the braid screen be terminated?
For EMC, clamp the braid over its full circumference in an EMC cable gland or a screen clamp close to the device, and keep the unscreened core length short. Bonding the screen at both ends gives the best protection against high-frequency interference; some low-level analogue circuits specify a single-ended connection to avoid earth loops. Tell us the termination method with your enquiry so we can confirm the braid design.
Is LiYCY suitable for drag chains or outdoor use?
No. LiYCY is built for fixed installation and occasional flexing in dry or damp indoor rooms. For continuous motion in drag chains, for outdoor exposure, or for oil and water, ask our engineers for a construction designed for that duty.
What should I send for a quotation?
Send the core count and cross-section, the length, the required peak voltage, fixed or moving installation and minimum bend radius, indoor or outdoor conditions, the screen termination method, sheath colour and any test or compliance documents you need.
Request this cable.
Send the core count and size, length, peak voltage, fixed or flexing installation, screen termination method and any test documents required.
Quality Assurance
Testing at every stage in our own workshop and laboratory, from incoming copper to the packed drum.
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
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
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
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
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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