B4) multicore 24awg overall foil RS232

Multicore 24awg overall foil RS232 Belden alternative data cables are designed for use where balanced lines are not required and for RS232 applications. The overall foil tape screening on this cable type provides protection against electrical interference.

These alternatives to Belden cables are flexible and come in polyvinylchloride (PVC) or low smoke and fume (LSF) as standard.

LSF material offers reduced smoke emission / fire propagation compared with standard PVC but may still release hydrogen chloride (HCL) if burnt. There is no standard governing the HCL emissions of LSF cable. LSF should not to be confused with Low Smoke Zero Halogen (LSZH) which guarantees max. 0.5% HCL emissions, for more information please see the in-depth explanation shown on our LSZH Control Flex front page.

These cables are often available in Armoured, Duct Grade or LSZH versions on request, please contact us for more information.


Comparable Belden References
9533 3 Core 9538 8 Core 9543 25 Core
9534 4 Core 9539 9 Core 9544 30 Core
9535 5 Core 9540 10 Core 9545 40 Core
9536 6 Core 9541 15 Core 9546 50 Core
9537 7 Core 9542 20 Core


Construction – multicore 24awg overall foil RS232
(9533, 9534, 9535, 9536, 9537, 9538, 9539, 9540, 9541, 9542, 9543, 9545, 9546)
stranded tinned copper conductors
PVC or LSF core insulation
cores twisted together
overall aluminium/polyester foil tape screen
tinned copper drain wire
grey PVC or LSF outer sheath


Technical – multicore 24awg overall foil RS232
(9533, 9534, 9535, 9536, 9537, 9538, 9539, 9540, 9541, 9542, 9543, 9545, 9546)
conductor make-up: stranded 7x 0.2mm, as AWG chart, see Stranding/Resistance page
voltage rating: 300V operating
capacitance: 3-8 core = 108pF/m core/core, 213pF/m core/shield
9+ cores = 98pF/m core/core, 180pF/m core/shield
temperature range: usually +60°C maximum, +80°C may be available on request
UL styles 2464
core identification: 1-10 cores = coloured to American data 1
  15+ cores = coloured to American data 2
– see Colour Codes page


A printable specification is available here: B4) multicore 24awg overall foil RS232.


For alternative constructions return to the Alternatives to Belden Data Cables front page.

UL references and Belden numbers are provided for cross reference purposes only, please inform us if you require Belden manufacture or UL approved cables.


All measurements should be considered nominal and images for illustration purposes only. Although Central Cables Ltd has made every reasonable effort to ensure its accuracy, the information contained herein is subject to error or omission and to change without notice. In no event will Central Cables Ltd be liable for any damages whatsoever, arising in connection with the information described.