UNITRONIC® Li2YCY (TP) fine-wire

Screened data transmission cable mit PE core insulation, fine wire strands and twisted pairs

UNITRONIC® Li2YCY (TP) fine-wire: LF, Low-capacitance, flexible, screened PVC data cable, DIN 47100, Twisted PE single core pairs, RS422/ RS485 interface wiring

Cables for RS485/RS422

Interference signals

Article number Number of pairs and mm² per conductor Outer diameter (mm) Copper index (kg/km) Weight (kg/km)
UNITRONIC® Li2YCY (TP) fine-wire
1 x 2 x 0.25 5.7 14 38
2 x 2 x 0.25 6.9 28 56
3 x 2 x 0.25 7.5 39.6 64
5 x 2 x 0.25 8.3 50 93


  • 7-wire stranded conductor (UNITRONIC® Li2YCY (TP) and UNITRONIC® Li2YCYv (TP) can be used for Maxi TERMI-POINT® wiring
  • Overall shield minimises electrical
  • Decoupling of circuits by means of
    twisted-pair (TP) design (crosstalk effects)

Application range

  • Particularly suitable for wiring data systems with transmission rates up to 10 megabits per second, and is suitable for the RS422 and RS485 interfaces.
  • For fixed and limited flexible installation
  • Can be used in dry or damp rooms
  • Signal-, control- and measuring cable,for transmission of low, sensitive signals and high bit rates
    Li2YCYv (TP) with reinforced black outer sheath (Yv) is suitable for indoors and outdoors and provides enhanced appropriateness for direct burial in the ground

Product features

  • Flame-retardant according to IEC 60332-1-2

Norm references / approvals

  • Based on VDE 0812


  • Finely stranded bare copper wires
  • Core insulation made of polyethylene (PE)
  • TP structure
  • Tinned-copper braiding
  • Outer sheath made of PVC
    Outer sheath colour: pebble grey (RAL 7032)


  • ETIM 5.0 Class-ID: EC000104
  • ETIM 5.0 Class-Description: Control cable

Core identification code

  • DIN 47100, refer to appendix T9

Operating capacitance

  • At 800 Hz: max. 60 nF/km

Peak operating voltage

  • (not for power applications)
    250 V


  • approx. 0.65 mH/km

Conductor design

  • Stranded conductor, fine-wire

Minimum bending radius

  • Occasional flexing: 15 x outer diameter
  • Fixed installation: 6 x outer diameter

Short-range crosstalk attenuation

  • Up to 1 MHz min. 50 dB
  • Up to 10 MHz min. 40 dB

Test voltage

  • Core/Core: 2000 V
  • Core/Shield: 1000 V

Characteristic impedance

  • 100 ± 15 Ohm (> 1 MHz)

Temperature range

  • Occasional flexing: -5°C to +70°C
  • Fixed installation: -40°C to +80°C

Unless specified otherwise, the shown product values are nominal values. Detailed values (e.g. tolerances) are available upon request.
Copper price basis: EUR 150/100 kg; see catalogue appendix T17 for the application and definition of "Metal price basis" and "Metal index"
Please find our standard lengths at: www.lappkabel.de/en/cable-standardlengths
Packaging: Ring ≤ 30 kg or ≤ 250 m, otherwise drum
Please specify the preferred packaging (e.g. 1 x 500 m drum or 5 x 100 m rings)
Photographs are not to scale and do not represent detailed images of the respective products.