UNITRONIC® Li2YCY (TP) fine-wire

Shielded data cable with PE core insulation, fine-wire conductor design and twisted in pairs

UNITRONIC® Li2YCY (TP) fine-wire - shielded PVC data cable with twisted pairs, ideal for wiring in measurement, control and regulation technology

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 braided 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 weak, 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 to IEC 60332-1-2

Norm references / approvals

  • Based on VDE 0812


  • Finely stranded bare copper wires
  • Core insulation made of polyethylene (PE)
  • Twisted pair (TP) structure
  • Tin-plated 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

  • Strand, 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 otherwise specified, the product values shown are nominal values. You can receive further values, such as tolerances, upon request if they available and have been released for publication.
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.