Twisted & Multipair Industrial Cable

Twisted pair cables are a type of wiring that features two conductors on a single circuit, twisted together. When a wire is carrying its current, it naturally creates an electromagnetic fields around that wire, therefore interfering with nearby cables. To reduce and eliminate this effect, twisted pairs carry signals in the opposite directions, so the two magnetic fields will occur at the opposite ends, essentially cancelling each other out. This is commonly known as cancellation.

Why use a twisted pair cable?

Generally, over a typical coaxial cable, twisted pairs are usually more accommodating in terms of flexibility and being able to bend them without significant loss in signal. The thickness of a coaxial cable can also attribute to the cost to produce, therefore the twisted offers a cheaper alternative whilst maintaining a high quality.

The twisted cable usually comes in two basic types, either shielded (STP) or unshielded (UTP), depending on where you were using the cable would determine the usage.

Some common industry acronyms you might see are:

U = unshielded
F = foil shielding
TP = twisted pair
S = braided shielding
Different levels of shielding will determine the effectiveness of the cable, each offering its own benefits.

Applications of twisted pairs

Twisted pairs are commonly used in telephone and data networks as they are reliable in exchanging high volumes of data at fast speeds all whilst remaining consistent at negating the crosstalk between the pairs and defending against any other external interference. Some twisted pair cables feature great resistance to fire and are sometimes halogen free, making them ideal for public buildings like schools, offices or hospitals.

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Description Price Number of Pairs Cross Sectional Area Cable Type American Wire Gauge Outer Diameter Shield Type Outer Sheath Material Sheath Colour Characteristic Impedance Core Strands Screened/Unscreened Voltage Rating Fire Behaviour Length
RS Stock No. 382-7381
Mfr. Part No.9842NH.00305
BrandBelden
$3,621.36
1 Reel of 304 Metre(s)
Reel(s)
2 0.2 mm² Twisted Pair 24 AWG 8.7mm SF/UTP LSZH Chrome 120 Ω 7/32 Screened 300 V - 304m
RS Stock No. 812-4693
BrandRS PRO
$644.53
1 Reel of 500 Metre(s)
Reel(s)
2 0.6 mm² Multicore 22 AWG 5.5mm Aluminium Foil-PET Tape PVC Grey - 7/0.2 mm Screened - - 500m
RS Stock No. 122-3052
BrandRS PRO
$383.89
1 Reel of 100
Reel(s)
4 0.2 mm² Multicore 24 AWG 6.9mm Aluminium Foil-PET Tape PVC Grey 77 Ω 7/0.2 mm Screened 300 V - 100m
RS Stock No. 749-1624
Mfr. Part No.6454 BK005
BrandAlpha Wire
$191.84
1 Reel of 30 Metre(s)
Reel(s)
1 0.456 mm² Twisted Pair 22 AWG 7.62mm Foil and Braid PVC Black 120 Ω 7/30 Screened 300 V Fire Resistant 30m
RS Stock No. 409-296
Mfr. Part No.25272 BK005
BrandAlpha Wire
$535.25
1 Reel of 30 Metre(s)
Reel(s)
2 0.23 mm² Twisted Pair 24 AWG 6.1mm Foil and Braid PUR Black 64 Ω 7/0.2 mm Screened 300 V - 30m
RS Stock No. 111-9105
Mfr. Part No.6073C SL005
BrandAlpha Wire
$365.17
1 Reel of 30 Metre(s)
Reel(s)
3 0.23 mm² Twisted Pair 24 AWG 9.5mm F/UTP PVC Grey 115 Ω 7/0.2 mm Screened 300 V Flame Retardant 30m
RS Stock No. 608-4026
Mfr. Part No.0035132
BrandLapp
$402.41
1 Reel of 100 Metre(s)
Reel(s)
4 0.14 mm² LiYCY 26 AWG 6.2mm S/UTP PVC Grey - - Screened 350 V Flame Retardant 100m
RS Stock No. 802-345
Mfr. Part No.9505.00U305
BrandBelden
$1,579.53
1 Box of 304 Metre(s)
Box(es)
5 0.2 mm² Twisted Pair 24 AWG 7.34mm F/UTP PVC Chrome 75 Ω 7/32 Screened 300 V - 304m
RS Stock No. 331-8972
Mfr. Part No.8163.01152
BrandBelden
$1,686.72
1 Reel of 152 Metre(s)
Reel(s)
3 0.2 mm² Twisted Pair 24 AWG 9.12mm SF/FTP PVC Chrome 100 Ω 7/32 Screened 300 V - 152m
RS Stock No. 749-1579
Mfr. Part No.6460 OR005
BrandAlpha Wire
$103.20
1 Reel of 30 Metre(s)
Reel(s)
- 0.33 mm² - 22 AWG 4.97mm - - Orange - 7/0.24 mm Screened 300 V - 30m
RS Stock No. 122-3053
BrandRS PRO
$1,154.09
1 Reel of 100
Reel(s)
19 0.2 mm² Multicore 24 AWG 11.5mm Aluminium Foil-PET Tape PVC Grey 95 Ω 7/0.2 mm Screened 300 V - 100m
RS Stock No. 229-1545
Mfr. Part No.44A1121-18-0/9-9
$1,290.72
1 Reel of 100 Metre(s)
Reel(s)
1 0.93 mm² Type 44 18 AWG 4.57mm S/UTP - White - 19/0.25 mm Screened 600 V Flame Retardant, Low Smoke Density, Self-extinguishing 100m
RS Stock No. 608-3893
Mfr. Part No.0035160
BrandLapp
$126.79
1 Reel of 100 Metre(s)
Reel(s)
2 0.25 mm² LiYY 23 AWG 6.1mm U/UTP PVC Grey - - Unscreened 500 V Flame Retardant 100m
RS Stock No. 807-8963
Mfr. Part No.0030937
BrandLapp
$514.42
1 Reel of 50 Metre(s)
Reel(s)
2 0.5 mm² FD CP 20 AWG 9mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
RS Stock No. 382-7218
Mfr. Part No.8760NH.00305
BrandBelden
$1,459.20
1 Reel of 304 Metre(s)
Reel(s)
1 0.8 mm² Twisted Pair 18 AWG 6mm F/UTP LSZH Chrome - 16/30 Screened 300 V Flame Retardant, Halogen Free 304m
RS Stock No. 823-229
Mfr. Part No.8769 060100
BrandBelden
$1,828.17
1 Reel of 30 Metre(s)
Reel(s)
19 0.33 mm² Twisted Pair 22 AWG 15.32mm U/STP PVC Chrome 50 Ω 7/30 Screened 30 V Flame Retardant 30m
RS Stock No. 749-1573
Mfr. Part No.6460 OR001
BrandAlpha Wire
$687.88
1 Reel of 305 Metre(s)
Reel(s)
- 0.33 mm² - 22 AWG 4.97mm - - Orange - 7/0.24 mm Screened 300 V - 305m
RS Stock No. 873-1342
Mfr. Part No.25121 BK005
BrandAlpha Wire
$428.36
1 Reel of 30 Metre(s)
Reel(s)
- 0.35 mm² - 22 AWG 4.98mm - - Black - 7/0.25 mm Screened 300 V - 30m
RS Stock No. 111-9004
Mfr. Part No.5479C SL005
BrandAlpha Wire
$304.31
1 Reel of 30 Metre(s)
Reel(s)
9 0.23 mm² Twisted Pair 24 AWG 8.71mm F/UTP PVC Grey 82 Ω 7/0.2 mm Screened 300 V Flame Retardant 30m
RS Stock No. 408-912
Mfr. Part No.86701CY SL005
BrandAlpha Wire
$365.45
1 Reel of 30 Metre(s)
Reel(s)
1 0.38 mm² Twisted Pair 22 AWG 5.59mm SF/UTP PVC Grey 45 Ω 19/0.16 mm Screened 300 V - 30m