B9) one-four pair 24awg overall foil+braid RS485

Alternatives to Belden these single or multi-pair 24awg overall foil+braid RS485 low capacitance data cables are designed to provide high speed data transmission and are suitable for RS485 applications. The two layers of screening, first an overall foil tape then a tinned copper wire braid ensures excellent protection against electrical interference. 

These alternatives to Belden cable types 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
9841 1 Pair 9842  2 Pair 9843 3 Pair 9844 4 Pair


Construction – single or multi-pair 24awg overall foil+braid RS485
(9841, 9842, 9843, 9844)
24AWG stranded tinned copper conductors
polyethylene (PE) core insulation
cores twisted into pairs
overall aluminium/polyester foil tape screen
tinned copper drain wire
tinned copper wire braid (TCWB) screen
grey PVC or LSF outer sheath


Technical – single or multi-pair 24awg overall foil+braid RS485
(9841, 9842, 9843, 9844)
conductor make-up: stranded 7x 0.2mm, as AWG chart, see Stranding/Resistance page
voltage rating: 300V operating
capacitance: 42pF/m core/core, 76pF/m core/shield
temperature range: usually +60°C maximum, +80°C may be available on request
UL style: 2919
core identification: coloured to Western electrical, see Colour Codes page
9841 may also be available with black & white cores on request


A printable PDF specification is available here: B9) single or multi-pair 24awg overall foil+braid RS485.


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.