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. 382-872
Mfr. Part No.70001NH.00120
BrandBelden
$510.87
1 Reel of 120 Metre(s)
Reel(s)
1 - Twisted Pair 18 AWG 8mm SF/UTP LSZH Black 100 Ω 7/26 Screened 300 V - 120m
RS Stock No. 608-4105
Mfr. Part No.0035802
BrandLapp
$401.50
1 Reel of 100 Metre(s)
Reel(s)
4 0.25 mm² LiYCY 24 AWG 7.6mm S/UTP PVC Grey - - Screened 500 V Flame Retardant 100m
RS Stock No. 807-9183
Mfr. Part No.0038402
BrandLapp
$200.52
1 Reel of 50 Metre(s)
Reel(s)
2 0.25 mm² LiHCH 24 AWG 6.5mm S/UTP - Grey - - Screened 250 V Flame Retardant -
RS Stock No. 382-598
Mfr. Part No.9506.01152
BrandBelden
$484.50
1 Box of 152 Metre(s)
Box(es)
6 0.2 mm² Twisted Pair 24 AWG 7.34mm SF/UTP PVC Chrome 75 Ω 7/32 Screened 300 V Flame Retardant 152m
RS Stock No. 807-9045
Mfr. Part No.0031330
BrandLapp
$249.08
1 Reel of 50 Metre(s)
Reel(s)
2 0.5 mm² Li2YCY 20 AWG 8.5mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 111-8950
Mfr. Part No.5472C SL005
BrandAlpha Wire
$93.66
1 Reel of 30 Metre(s)
Reel(s)
2 0.23 mm² Twisted Pair 24 AWG 5.38mm F/UTP PVC Grey 64 Ω 7/0.2 mm Screened 300 V Flame Retardant 30m
RS Stock No. 393-018
Mfr. Part No.5472C SL033
BrandAlpha Wire
$145.77
1 Reel of 100 Metre(s)
Reel(s)
2 0.23 mm² Twisted Pair 24 AWG 5.38mm F/UTP PVC Grey 64 Ω 7/0.2 mm Screened 300 V - 100m
RS Stock No. 126-5179
Mfr. Part No.5472C SL001
BrandAlpha Wire
$551.24
1 Reel of 304 Metre(s)
Reel(s)
2 0.23 mm² Twisted Pair 24 AWG 5.38mm F/UTP PVC Grey 64 Ω 7/0.2 mm Screened 300 V Flame Retardant 304m
RS Stock No. 807-9017
Mfr. Part No.0031320
BrandLapp
$175.02
1 Reel of 50 Metre(s)
Reel(s)
2 0.22 mm² Li2YCY 24 AWG 6.5mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 382-576
Mfr. Part No.9501.00U305
BrandBelden
$361.60
1 Box of 304 Metre(s)
Box(es)
1 - Twisted Pair 24 AWG 3.96mm F/UTP PVC Chrome 75 Ω 7/32 Screened 300 V - 304m
RS Stock No. 608-4060
Mfr. Part No.0035135
BrandLapp
$337.85
1 Reel of 50 Metre(s)
Reel(s)
12 0.14 mm² LiYCY 26 AWG 8.9mm S/UTP PVC Grey - - Screened 350 V Flame Retardant 50m
RS Stock No. 673-3197
Mfr. Part No.5472L SL005
BrandAlpha Wire
$66.83
1 Reel of 30 Metre(s)
Reel(s)
2 0.22 mm² Twisted Pair 24 AWG 5.31mm F/UTP LSZH Grey 80 Ω 7/0.2 mm Screened 300 V - 30m
RS Stock No. 807-9177
Mfr. Part No.0038316
BrandLapp
$718.30
1 Reel of 50 Metre(s)
Reel(s)
16 0.14 mm² LiHCH 26 AWG 10.4mm S/UTP - Grey - - Screened 250 V Flame Retardant -
RS Stock No. 393-012
Mfr. Part No.5474C SL033
BrandAlpha Wire
$345.21
1 Reel of 100 Metre(s)
Reel(s)
4 0.23 mm² Twisted Pair 24 AWG 6.17mm F/UTP PVC Grey 76 Ω 7/0.2 mm Screened 300 V - 100m
RS Stock No. 111-8972
Mfr. Part No.5474C SL005
BrandAlpha Wire
$170.14
1 Reel of 30 Metre(s)
Reel(s)
4 0.23 mm² Twisted Pair 24 AWG 6.17mm F/UTP PVC Grey 76 Ω 7/0.2 mm Screened 300 V Flame Retardant 30m
RS Stock No. 111-9010
Mfr. Part No.5480C SL005
BrandAlpha Wire
$378.22
1 Reel of 30 Metre(s)
Reel(s)
10 0.23 mm² Twisted Pair 24 AWG 9.47mm F/UTP PVC Grey 82 Ω 7/0.2 mm Screened 300 V Flame Retardant 30m
RS Stock No. 807-9186
Mfr. Part No.0038403
BrandLapp
$175.77
1 Reel of 50 Metre(s)
Reel(s)
3 0.25 mm² LiHCH 24 AWG 7.3mm S/UTP - Grey - - Screened 250 V Flame Retardant -
RS Stock No. 126-5214
Mfr. Part No.5474C SL001
BrandAlpha Wire
$931.06
1 Reel of 304 Metre(s)
Reel(s)
4 0.23 mm² Twisted Pair 24 AWG 6.17mm F/UTP PVC Grey 76 Ω 7/0.2 mm Screened 300 V Flame Retardant 304m
RS Stock No. 608-4111
Mfr. Part No.0035803
BrandLapp
$544.29
1 Reel of 100 Metre(s)
Reel(s)
6 0.25 mm² LiYCY 24 AWG 8.5mm S/UTP PVC Grey - 0.25 mm² Screened 500 V - 100m
RS Stock No. 673-3194
Mfr. Part No.5471L SL005
BrandAlpha Wire
$63.89
1 Reel of 30 Metre(s)
Reel(s)
1 0.22 mm² Twisted Pair 24 AWG 4.09mm F/UTP LSZH Grey 68 Ω 7/0.2 mm Screened 300 V - 30m
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