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 conductorOuter diameter [mm]Copper index (kg/km)Weight (kg/km)Base Unit

Price (base price)

UNITRONIC® Li2YCY (TP) fine-wire
1 x 2 x 0.255.71438
2 x 2 x 0.256.92843
3 x 2 x 0.257.539.664
5 x 2 x 0.258.35093
Available from stock
In stock in Germany
Not available


  • Overall braid 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 qualified 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 its reinforced, nominal/ minimum average wall thickness of at least 1.8 mm of the black outer sheath (Yv) is designed for indoor and outdoor use as well as for applications where a reinforced outer sheath may turn out to be advantageous

Product features

  • Flame-retardant according IEC 60332-1-2

Norm references / Approvals

  • Based on VDE 0812

Product Make-up

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

Classification ETIM 5

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

Classification ETIM 6

  • ETIM 6.0 Class-ID: EC000104
  • ETIM 6.0 Class-Description: Control cable

Core identification code

  • DIN 47100, refer to Appendix T9

Mutual capacitance

  • At 800 Hz: max. 60 nF/km


  • approx. 0.65 mH/km

Conductor stranding

  • 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/screen: 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. Refer to catalogue appendix T17 for the definition and calculation of copper-related surcharges.
  • Please find our standard lengths at: www.lappkabel.de/en/cable-standardlengths
  • Packaging size: coil ≤ 30 kg or ≤ 250 m, otherwise drum
  • Please specify the preferred type of packaging (e.g. 1 x 500 m drum or 5 x 100 m coils).
  • Photographs and graphics are not to scale and do not represent detailed images of the respective products.
  • Prices are net prices without VAT and surcharges. Sale to business customers only.