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Belden 9842 Series Data Cable, 2 Pairs, 4 Cores, 0.25 mm², Screened, 24 AWG, 30m, Aluminium Foil-PET Tape, Tinned

RS Stock No.:: 172-0978
Mfr. Part No.:: 9842.0030
Brand:: Belden

Belden 9842 Series Data Cable, 2 Pairs, 4 Cores, 0.25 mm², Screened, 24 AWG, 30m, Aluminium Foil-PET Tape, Tinned

Subtotal (1 reel of 30 metres)*

£209.18

(exc. VAT)

£251.02

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

1 unit(s) ready to ship
Plus 4 unit(s) ready to ship from another location
Plus 2 unit(s) shipping from 16 October 2025

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Reel(s)	Per Reel	Per Metre*
1 +	£209.18	£6.973

*price indicative

RS Stock No.:: 172-0978
Mfr. Part No.:: 9842.0030
Brand:: Belden

Belden 9842 RS-485 Computer Cable, 24 AWG

If you need dependable data transmission for your computer networking application, the Belden 9842 series cable is a perfect choice.

The 9842 cable is a low capacitance computer cable designed for use with EIA RS-485 installations. It has two 24 AWG pairs stranded (7x32) tinned copper conductors. The nominal characteristic impedance is 120 Ohm.

The Belden 9842 cable features the signature Beldfoil® patented shield which offers lightweight, flexible, and strong shielding. It also uses polyethylene insulation (PE) for low dielectric loss and high dielectric strength.

The twisted pair construction helps to minimise external interference with data transmission, as the conductors carry signals in opposite directions to negate crosstalk.

Features and Benefits:

• Tinned copper conductors ensure optimal conductivity and resistance to corrosion
• Overall Beldfoil® (100% coverage) + tinned copper braid shield (90% coverage)
• PVC (Polyvinyl Chloride) outer jacket offers high durability
• 24 AWG stranded tinned copper drain wire
• Low capacitance provides reliable long-distance transmission

Applications:

RS-485
DMX-512

What is RS-485?

This term refers to an industry standard for defining the electrical characteristics of serial lines in serial communication systems (methods of sending data). This standard is useful for industrial control systems as it ensures signal transmission over long distances and electrically noisy environments, in installations where many devices may need to be interconnected.

What are the benefits of shielded cabling?

Cables which are screened, or shielded, are better protected again electromagnetic interference (EMI) than unshielded versions. EMI refers to electrical noise which is conducted or radiated, and it can negatively affect the functioning of devices and equipment. Screening reduces crosstalk between cables (signal leakage), ensuring higher signal integrity.

Belden Data Cable,RS-485 Type, PVC Jacket - 9842 Series - 9842.0030

To stop information from getting lost in translation, fit this data cable from Belden. It's just what you need in a communication network, as it's an RS-485 type that delivers clean signals over long distances, even when there's a lot of background noise. Two twisted pairs carry signals in opposite directions to eliminate crosstalk and maximise the reliability of data transmission. Thanks to its superior flexibility, you can bend this cable around corners without affecting performance and with little chance of it cracking.

Features & Benefits

• Robust PVC jacket withstands abrasion in demanding settings
• Tinned copper conductors support optimal electrical flow
• Beldfoil shielding combines aluminium foil with polyester film to brush off electrostatic disruption and provide strength

Applications

• Telecommunications networks
• Medical centres
• Avionics
• Industrial automation

Can I use this data cable in humid locations?

Yes, the product is suitable to use in humid indoor settings, as its tinned copper conductors and PVC jacket resist corrosion.

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Belden
	Number of Pairs	2
	Cross Sectional Area	0.25 mm²
	Number of Cores	4
	American Wire Gauge	24 AWG
	Screened/Unscreened	Screened
	Length	30m
	Shield Type	Aluminium Foil-PET Tape, Tinned Copper Braid
	CPR Certification	Eca
	Sheath Colour	Chrome
	Cable Type	Twisted Pair
	Outer Diameter	8.64mm
	Outer Sheath Material	PVC
	Cable Shape	Twisted Pair
	Characteristic Impedance	120 Ω
	Series	9842
	Shielded/Unshielded	Shielded
	Maximum Operating Temperature	+80°C
	Minimum Operating Temperature	-30°C
	Fire Behaviour	Fire Resistant
	Core Strands	7/32 AWG
	Voltage Rating	300 V
	Standards Met	EU CE Mark, EU Directive 2000/53/EC (ELV), EU Directive 2003/96/EC (BFR), EU Directive 2011/65/EU (ROHS II), EU Directive 2012/19/EU (WEEE), EU Directive 2015/863/EU, EU Directive Compliance

	Select all
	Brand Belden
	Number of Pairs 2
	Cross Sectional Area 0.25 mm²
	Number of Cores 4
	American Wire Gauge 24 AWG
	Screened/Unscreened Screened
	Length 30m
	Shield Type Aluminium Foil-PET Tape, Tinned Copper Braid
	CPR Certification Eca
	Sheath Colour Chrome
	Cable Type Twisted Pair
	Outer Diameter 8.64mm
	Outer Sheath Material PVC
	Cable Shape Twisted Pair
	Characteristic Impedance 120 Ω
	Series 9842
	Shielded/Unshielded Shielded
	Maximum Operating Temperature +80°C
	Minimum Operating Temperature -30°C
	Fire Behaviour Fire Resistant
	Core Strands 7/32 AWG
	Voltage Rating 300 V
	Standards Met EU CE Mark, EU Directive 2000/53/EC (ELV), EU Directive 2003/96/EC (BFR), EU Directive 2011/65/EU (ROHS II), EU Directive 2012/19/EU (WEEE), EU Directive 2015/863/EU, EU Directive Compliance

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