Rolling Stock Cables
EN 50264 EN 50306 EN 50382 Databus Cables NF F 63-826 NF F 63-808 NF F 63-827 RSE/STD/024 PART 6

WTB (Wired Train Bus) / MVB (Multifunction Vehicle Bus) Cables


Rolling Stock Cables    

                                                               A. Conductor B. Insulation C. Screen D. Sheath 


The cables are designed for permanent installation inside of rolling stock to connect fixed parts. A typical

application is a communication system in a locomotive. The system uses a wire backed bus system to the TCN

standard for control and instrumentation and for diagnostics. This bus system consists of the rail bus WTB

(Wired Train Bus) and the road bus MVB (Multifunction Vehicle Bus) which are connected via redundant




Stranded tin plated copper conductor according to IEC 60228 class 5


Foam PE or Foam Skin

Cable Element

Twisted pair

Core Wrapping

Plastic tape(s)

EMC Screen1

Aluminium clad polyester foil

EMC Screen2

Tin plated copper braid

Core Wrapping

Plastic tape(s)

Outer Sheath

Cross-linked oil resistant LSZH compound

Electrical & Mechanical Properties

Nominal Voltage:300V

Maximum Conductor Temperature:100℃

Minimum Permissible Ambient Temperature:-40°C

Bending Radius:12 x Overall Diameter

Chemical & Environmental Properties

EN 60684-2:No fluorine

EN 50305; EN 60811-2-1:Resistance to mineral oil & fuel oil, acid & alkali

EN 50305:Resistance to ozone

Fire Performance for rolling stock application

EN 50306-2:Hazard levels HL1, HL2/HL3, HL4

DIN 5510-2:Protection level 1/2/3/4

BS 6853:Interior use 1a, 1b, II; Exterior use 1a, 1b, II

NF F 16-101:FO

EN45545-2:R15 Interior/ R16 Exterior HL1, HL2, HL3

Fire Performance in general

EN 50265-2-1; IEC 60332-1-2; NF C 32-070 2.1 (C2) Vertical flame propogation for a single insulated wire or cable
EN 50266-2-4 + EN 50305; IEC 60332-3-24;
NF C 32-070 2.2 (C1); VDE 0472 Teil 804
Vertical flame spread of vertically mounted bunched wires or cables
EN 50268-2; IEC 61034-2; NF C 32-073 ;
NF C 20-902; NF F 16 101; VDE 0472 Teil 816
Low Smoke Emission
EN 50267-2-1; IEC 60754-1; NF C 32-074;NF C 20-454; VDE 0472 Teil 815 Halogen Free
EN 50267-2-2/3; IEC 60754-2; NF C 32-074;NF C 20-453; VDE 0472 Teil 813 Low Corrosivity (Acidity & Conductivity)
EN 50305; NFX 70-100; NFF 63808; TM1-04; BS6853 Low Toxicity
NFF 16101; NFF 63808; BS6853 Smoke index
EN45545-2 Requirement for fire behavior of materials & components


Nominal Cross Sectional Area Number & Nominal Diameter of Strands Nominal Sheath Thickness Nominal Overall Diameter Nominal Weight Maximum Conductor Resistance Impedance Maximum Attenuation
20°C @0.75-3MHz @1MHz @2MHz
mm2 AWG No/mm mm mm kg/km Ω/km Ω dB/km dB/km
0.62 20 19/0.2 1.2 8.3 80 33.1 120+/-12 10 15