LAPP 1031311

Product Name: UNITRONIC® LiYCY Shielded Flexible Low‑Frequency Signal‑and‑Control Cable Product Brief: Shielded multi‑core flexible control‑and‑data cable, built upon LiYY base construction with overall copper‑braid shielding for electromagnetic‑interference suppression for signal circuits operating in electrically noisy industrial environments.

Technical Specifications

  • Conductor: Fine‑stranded bare‑copper class 5 flexible strands
Category:
Description
  • Core Quantity: 12 cores
  • Single‑core cross‑section: 0.14 mm²
  • Core Insulation: PVC
  • Overall Shield: Tinned‑copper braid shielding, high‑coverage braid
  • Outer Sheath: Black PVC outer jacket
  • Core Identification: DIN 47100 colour‑coding
  • Rated Voltage: 250 V
  • Test Voltage: 1200 V AC
  • Operating Temperature: Fixed installation ‑20 °C … +70 °C; flexible application ‑5 °C … +70 °C
  • Flame Performance: IEC 60332‑1‑2 flame‑retardant
  • Certifications: VDE, CE, CPR compliant

Functional Features

  • Overall tinned‑copper braid shielding provides EMC protection against external electromagnetic interference
  • Fine‑stranded flexible conductors support intermittent bending and equipment internal routing
  • Compact cable outer dimension for cabinet‑wiring space optimisation
  • Flame‑retardant PVC material inhibits flame spread in electrical‑fire scenarios
  • Tinned‑copper braid resists oxidation compared with bare‑copper shielding

Application Scenarios

  • Industrial PLC analogue‑signal and digital‑I/O wiring in high‑EMI environments adjacent to power drives and contactors
  • Measurement‑and‑sensor signal‑transmission wiring
  • Machine‑tool control cabinets, packaging‑equipment internal wiring
  • Dry‑and‑damp indoor locations with medium electromagnetic‑interference levels; occasional flexing only

Performance Parameters

  • Copper index: 14.2 kg/km (including shield braid copper mass)
  • Cable total weight: 41 kg/km
  • Shield coverage ratio ≥ 85 %
  • Mutual core‑to‑core capacitance approx. 120 pF/m

Material Composition

  • Conductors: Fine‑stranded bare electrolytic copper
  • Core insulation: PVC compound
  • Shield layer: Tinned‑copper woven braid
  • Inner separator: Polyester‑film separator between core bundle and shield braid
  • Outer sheath: Black abrasion‑resistant PVC

Structural Characteristics

  • Concentric‑twisted insulated‑core bundle
  • Polyester separator separates core assembly from shield braid to prevent short‑circuit between shield and conductors
  • Complete surrounding tinned‑copper braid screen
  • Circular compact outer profile; outer‑jacket surface marked with LAPP article number and technical traceability text

Working Principle Multi‑core assembly transfers low‑level analogue and digital signals; surrounding tinned‑copper braid reflects and shunts external electromagnetic‑interference fields to ground potential, preventing interference voltages coupling into internal signal conductors.

Installation Requirements

  • Minimum bending radius: 8 × cable outer diameter fixed installation; 15 × outer diameter for flexing operations
  • Connect cable‑shield braid to protective‑earth potential at one or both cable ends following EMC engineering practice
  • Not for continuous‑cycle drag‑chain use; for fixed installation and occasional flexing only
  • Do not apply mechanical tensile load onto individual conductors; tension borne by outer sheath

Usage Notes

  • For signal‑circuit usage only; not suitable for main‑power‑supply circuits
  • Proper shield‑earthing implementation is mandatory to achieve full noise‑rejection performance
  • Avoid heavy‑solvent chemical‑agent exposure; not designed for direct underground burial
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