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. 111-8966
Mfr. Part No.5473C SL005
BrandAlpha Wire
$129.98
1 Reel of 30 Metre(s)
Reel(s)
3 0.23 mm² Twisted Pair 24 AWG 5.69mm F/UTP PVC Grey 76 Ω 7/0.2 mm Screened 300 V Flame Retardant 30m
RS Stock No. 749-1573
Mfr. Part No.6460 OR001
BrandAlpha Wire
$652.02
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. 812-4763
BrandRS PRO
$177.36
1 Reel of 100 Metre(s)
Reel(s)
1 0.56 mm² Twisted Pair 20 AWG 5.2mm Aluminium Foil-PET Tape PVC Grey - 7/0.32 mm Screened - - 100m
RS Stock No. 807-9026
Mfr. Part No.0031321
BrandLapp
$172.67
1 Reel of 50 Metre(s)
Reel(s)
3 0.22 mm² Li2YCY 24 AWG 7.1mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 382-232
Mfr. Part No.3600B-68
Brand3M
$44.921
Each
units
34 0.08 mm² Twisted Pair 28 AWG 9.1mm SF/UTP PVC Grey 58 (Unbalanced) 91 (Balanced) Ω 7/0.127 mm Screened 150 V - 30m
RS Stock No. 331-9082
Mfr. Part No.8133 060500
BrandBelden
$1,278.65
1 Reel of 152 Metre(s)
Reel(s)
3 0.07 mm² Twisted Pair 28 AWG 6.86mm F/UTP PVC Chrome 120 Ω 7/36 Screened 30 V - 152m
RS Stock No. 382-7369
Mfr. Part No.9729NH.00305
BrandBelden
$1,617.10
1 Reel of 304 Metre(s)
Reel(s)
2 0.23 mm² Twisted Pair 24 AWG 8.5mm F/UTP LSZH Chrome - 7/32 Screened 300 V Flame Retardant 304m
RS Stock No. 382-7230
Mfr. Part No.8762NH.00305
BrandBelden
$746.32
1 Reel of 304 Metre(s)
Reel(s)
1 0.5 mm² Twisted Pair 20 AWG 5.6mm F/UTP LSZH Chrome - 7/28 Screened 300 V Flame Retardant, Low Smoke Zero Halogen (LSZH) 304m
RS Stock No. 811-7415
BrandRS PRO
$164.45
1 Reel of 100 Metre(s)
Reel(s)
2 - Twisted Pair 24 AWG 5.6mm Aluminium Foil-PET Tape LSZH Grey 75 Ω 7/0.6 mm Screened 300 V - 100m
RS Stock No. 823-184
Mfr. Part No.8777.00U152
BrandBelden
$773.15
1 Reel of 152 Metre(s)
Reel(s)
3 0.33 mm² Twisted Pair 22 AWG 6.93mm U/STP PVC Chrome 50 Ω 7/30 Screened 30 V - 152m
RS Stock No. 807-9146
Mfr. Part No.0038302
BrandLapp
$165.73
1 Reel of 50 Metre(s)
Reel(s)
2 0.14 mm² LiHCH 26 AWG 5.9mm S/UTP - Grey - - Screened 250 V Flame Retardant -
RS Stock No. 382-7246
Mfr. Part No.8777NH.00305
BrandBelden
$1,395.65
1 Reel of 304 Metre(s)
Reel(s)
3 0.33 mm² Twisted Pair 22 AWG 7mm U/STP LSZH Chrome - 7/30 Screened 300 V - 304m
RS Stock No. 807-9079
Mfr. Part No.0031371
BrandLapp
$184.68
1 Reel of 50 Metre(s)
Reel(s)
2 0.25 mm² Li2YCY 24 AWG 6.9mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 807-9076
Mfr. Part No.0031370
BrandLapp
$122.88
1 Reel of 50 Metre(s)
Reel(s)
1 0.25 mm² Li2YCY 24 AWG 5.7mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 811-7383
BrandRS PRO
$198.62
1 Reel of 100 Metre(s)
Reel(s)
5 - Twisted Pair 24 AWG 7.3mm Foil PVC Grey 75 Ω 7/0.6 mm Screened 300 V - 100m
RS Stock No. 608-3893
Mfr. Part No.0035160
BrandLapp
$116.21
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. 408-833
Mfr. Part No.86702CY SL005
BrandAlpha Wire
$234.82
1 Reel of 30 Metre(s)
Reel(s)
2 0.38 mm² Twisted Pair 22 AWG 7.29mm SF/UTP PVC Black 53 Ω 19/0.16 mm Screened 300 V - 30m
RS Stock No. 740-4787
Mfr. Part No.B966021 GE321
BrandAlpha Wire
$402.76
1 Reel of 50 Metre(s)
Reel(s)
2 0.81 mm² Twisted Pair 18 AWG 8.28mm Unshielded PVC Grey 65 Ω 16/30 Unscreened 300 V Flame Retardant 50m
RS Stock No. 331-9155
Mfr. Part No.9744 060U500
BrandBelden
$452.11
1 Reel of 152 Metre(s)
Reel(s)
2 0.35 mm² Twisted Pair 22 AWG 6.2mm U/UTP PVC Chrome - 7/30 Unscreened 150 V Flame Retardant 152m
RS Stock No. 362-572
Mfr. Part No.44A1121-22-0/9-9
$2,124.10
1 Reel of 100 Metre(s)
Reel(s)
1 0.38 mm² Type 44 22 AWG 3.56mm S/UTP - White - 19/0.16 mm Screened 600 V Flame Retardant, Low Smoke Density, Self-extinguishing 100m