RD-Y(St)Y

Instrumentation Cable suitable for Maxi-Term-Point®-connection, meter marking

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Technical data
  • Special -PVC data transmission cable
    adapted to DIN VDE 0815
  • Conductor resistance (loop)
    max. 73,6 Ohm/km
  • Temperature range
    flexing -5°C to +50°C
    fixed installation -40°C to +70°C
  • Operating peak voltage max. 600 V
    (not for heavy current installation purposes)
  • Test voltage
    core/core 2000 V
    core/screen 2000 V
  • Insulation resistance
    core/core min. 100 MOhm x km
    core/screen min. 100 MOhm x km
  • Mutual capacitance
    at 800 Hz max. 100 nF/km
    (this value may be exceeded
    by 20% with a make-up to 4 pairs)
  • Impedance
    at 1 kHz approx. 370 Ohm
    at 10 kHz approx. 130 Ohm
  • Capacity unbalance
    at 800 Hz max. 200 pF/100 m
    (20% of the values, but one
    value up to 400 pF is allowed)
  • Line attenuation
    at 1 kHz approx. 1,2 dB/km
    at 10 kHz approx. 3,0 dB/km
  • Cross-talk attenuation at 10 kHz
    and cable length of 500 m min. 60 dB
  • Minimum bending radius
    7,5x cable Ø
Cable structure
  • Bare copper conductor, multi-wire
  • Conductor construction:
    0,5 mm² = 7x0,3 mm
  • Core insualtion of PVC (Semi-Rigid-PVC)
  • Core identification coloured
    pair-no.1: a-core = BU; b-core = RD
    pair-no.2: a-core = GY; b-core = YE
    pair-no.3: a-core = GN; b-core = BN
    pair-no.4: a-core = WH; b-core = BK
  • Cores stranded in pairs
    (approx. 20 pitch/m ≙ 50 mm)
  • 4 pairs stranded to a unit
    (unit labelled with numbers
    printed plastic helix)
  • Units stranded in concentric layers
  • Electrostatic screen of plastic coated
    aluminium foil and drain-wire tinned,
    0,5 mm² = 7x0,3 mm
  • Outer sheath of PVC
  • Sheath colour: grey (RAL 7032)
    or blue (RAL 5015)
  • With meter marking
Properties
  • Twisted pairs with short different
    lay lengths within a bundle results
    to good crosstalk attentuation values
  • The static screen protects the
    transmission circuits against outer
    electrical interferences
  • The materials used during manufacturing
    are cadmium-free, contain no silicone
    and are free from substances harmful
    to the wetting properties of lacquers
Tests
  • PVC self-extinguishing and flame retardant
    acc. to DIN VDE 0482-332-1-2,
    DIN EN 60332-1-2, IEC 60332-1 (equivalent
    DIN VDE 0472 part 804 test method B)
Note
  • Cop.weight including drain-wire.
  • Also available halogen-free type
    RD-H(St)H on request.
  • Maxi-Termi-Point® = registered trade
    mark AMP.
  • AWG sizes are approximate equivalent
    values. The actual cross section is in mm².
Application
The data transmission cables RD-Y(St)Y are used in measurement and control technology such as in control rooms of industrial plants and power stations. The cables serves for transmission of analog and digital signals up to frequencies of approx. 10 kHz. These cables offer considerable advantages by using the quick and economical connecting possibilities in Maxi-Termi-Point® technique. This solderless connecting technique is defined by a compression termination that employs a spring-clip for the connection of the cable to a square rigid post without pre-stripping. For this technique it is necessary to have an exact 7-core stranded conductor and a Semi-Rigid-PVC. Suitable for fixed installation only inside of buildings. With blue outer sheath suitable for intrinsic safe systems.
CE = Product conforms with Low-Voltage Directive 2014/35/EU.
Downloads
Data sheet
Certificate of compliance

Part no.

No.pairs x
cross-sec.
mm²

Sheath
colour

No.
units

Outer Ø

approx. mm

Cop.
weight

kg / km

Weight

approx. kg / km

AWG-No.

20140

2 x 2 x 0,5

grey

-

6,8

25,0

61,0

20

20141