25-Core 0.25mm² LIYY Control Cable
Signal drift, intermittent failures, and unscheduled downtime in multi-conductor control circuits create cost overruns that engineering teams can’t afford. The 25-core 0.25mm² LIYY control cable is built to stabilize signal transmission in densely wired industrial environments. It simplifies cabinet wiring and reduces termination errors on high-channel-count systems.
What Makes This Cable Fit for Automated Infrastructure
High-Density Core Configuration
A 25-core layout with 0.25mm² finely stranded bare copper conductors. This packs high channel capacity into a compact outer jacket. Panel and machine builders shorten wiring time and reclaim enclosure space without sacrificing circuit count.
Precision-Conductor Geometry
Each conductor uses VDE-compliant electrolytic copper with a consistent twist lay. Impedance variance stays within a narrow band across the bundle. Signal integrity holds steady from sensor to PLC, which means fewer noise-related callbacks after commissioning.
DIN 47100 Colour-Coded Cores
Every core carries a distinct colour code from the DIN 47100 standard. No repeating sequences, no guesswork during termination. Wiring teams work faster, wire misidentification drops, and factory acceptance testing runs smoother.
PVC Jacket Rated for Dynamic Installations
A matte grey PVC outer sheath engineered for flexing applications and fixed routing. The jacket resists light mineral oils and many industrial cleaning agents. Cable service life extends inside cable carriers, drag chains, and moving machine elements.
Short-Term Thermal Headroom
Continuous conductor temperature rated up to 80°C with excursions tolerated at 100°C during short-circuit conditions. The insulation system meets the thermal demands typical of unventilated control panels and machinery enclosures.
Technical Specifications
| Parameter | Value |
|---|---|
| Cable type | LIYY (according to VDE 0812) |
| Number of cores | 25 |
| Nominal cross-section | 0.25 mm² per core |
| Conductor construction | Fine stranded bare copper, class 5 |
| Core insulation | PVC (polyvinyl chloride) |
| Core colour coding | DIN 47100 |
| Outer sheath material | PVC, grey (RAL 7001) |
| Rated voltage | 300/500 V |
| Test voltage | 1200 V (core/core), 2000 V (core/screen – not applicable) |
| Temperature range, fixed installation | -40 °C to +80 °C |
| Temperature range, flexing | -5 °C to +70 °C |
| Minimum bending radius, fixed | 6 × outer diameter |
| Minimum bending radius, flexing | 12 × outer diameter |
| Approximate outer diameter | 8.0 mm ± 0.3 mm |
| Approximate copper weight | 54 kg/km |
| Approximate total weight | 85 kg/km |
| Insulation resistance | ≥ 20 MΩ × km at 20 °C |
| Flame retardance | IEC 60332-1-2 |
Where This Cable Fits Real Application Landscapes
- Industrial automation and machine building. Links sensors, actuators, and PLC I/O modules inside control cabinets and along machine frames where a 25-channel signal trunk simplifies cabling.
- Measuring, instrumentation, and lab equipment. Transports low-power analogue and digital signals over short to medium distances while preserving waveform fidelity.
- Wind turbine nacelle controls. Handles continuous micro-flexing cycles in pitch and yaw control cabinets without conductor fatigue.
- Package handling and logistics systems. Operates inside cable tracks on sorters and conveyors where high bend counts and moderate oil exposure occur.
- Building management and HVAC panels. Connects field devices to DDC controllers in commercial buildings, with quick identification through colour-coded cores.
Compliance and Quality Benchmarks
- ✅ Conductor and insulation design follows VDE 0812
- ✅ CE marking under the Low Voltage Directive 2014/35/EU
- ✅ RoHS compliant (2011/65/EU including delegated amendments)
- ✅ Flame propagation tested per IEC 60332-1-2
- ✅ Conductor resistance and dimensional checks per DIN EN 60228 / IEC 60228
- ✅ Factory production monitored under ISO 9001-registered quality management
- ✅ Core colour identification consistent with DIN 47100
Frequently Asked Questions
What is the difference between LIYY and LiYCY cable, and when should I choose LIYY?
LIYY has no overall copper braid screen. LiYCY adds a tinned copper braid over the core bundle to shield against electromagnetic interference. Use LIYY when the electromagnetic environment is controlled, routing distances are short, and you want to avoid additional grounding and connector costs. If your signal lines run parallel to VFD motor cables or near high-frequency sources, LiYCY is the safer pick.
Can I use this 25-core 0.25mm² cable for moving cable track applications?
Yes, within defined mechanical limits. The bending radius must stay at 12 × outer diameter or larger during continuous flexing, and the ambient temperature cannot drop below -5 °C. For applications exceeding one million flex cycles, please request a specific bending test report from our application engineering team. Conductor breakage risk outside these parameters falls on the system designer.
How do I properly prepare and terminate the cores in a dense junction box?
Remove the outer sheath with a rounded stripping tool to avoid scoring the core insulation. Follow your terminal block’s strip length exactly. Because all 25 cores use the DIN 47100 colour table, print the colour chart and keep it at the panel builder’s workstation. If you assign signals to terminals, document the pinout once and reuse it—colour consistency allows that.
Do you supply custom lengths or pre-assembled harness versions of this cable?
Standard supply comes on wooden drums or coils in 100 m, 500 m, and 1000 m put-ups. Smaller cut lengths and pre-cut, labelled, and ferruled harness variants are available through our value-added service desk. Minimum order quantities and lead time depend on the cutting and marking specification.
Request the Full Datasheet and a Project Quote
Every engineering decision depends on accurate data points that a summary page cannot fully capture. Get the complete 25-core 0.25mm² LIYY datasheet with derating curves, bending cycle endurance graphs, and chemical resistance tables.
Send your inquiry through the contact form, and an application specialist will respond within one working day with the datasheet, stock availability for your region, and a shipping timeline that fits your project schedule.