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. 187-1984
Mfr. Part No.2466C SL021
BrandAlpha Wire
$1.415
Each
units
2 0.35 mm² Twisted Pair 22 AWG 4.62mm Aluminium/Mylar Tape PVC Black, Grey 60 Ω 7/30 AWG - 300 V ac - -
RS Stock No. 740-4765
Mfr. Part No.B964011 GE321
BrandAlpha Wire
$171.31
1 Reel of 50 Metre(s)
Reel(s)
1 0.35 mm² Twisted Pair 22 AWG 4.24mm Unshielded PVC Grey 79 Ω 7/30 Unscreened 300 V Flame Retardant 50m
RS Stock No. 807-9060
Mfr. Part No.0031334
BrandLapp
$857.11
1 Reel of 50 Metre(s)
Reel(s)
10 0.5 mm² Li2YCY 20 AWG 14.8mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 187-2088
Mfr. Part No.6391 SL001
BrandAlpha Wire
$4.35
Each
units
3 - Twisted Pair 28 AWG 5.92mm Aluminium/Mylar Tape PVC Grey 100 Ω 7/36 AWG - 300 V ac - -
RS Stock No. 807-9032
Mfr. Part No.0031324
BrandLapp
$459.93
1 Reel of 50 Metre(s)
Reel(s)
10 0.22 mm² Li2YCY 24 AWG 10.4mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 740-4793
Mfr. Part No.B961032 GE321
BrandAlpha Wire
$368.82
1 Reel of 50 Metre(s)
Reel(s)
3 0.09 mm² Twisted Pair 28 AWG 4.95mm Foil PVC Grey 90 Ω 7/36 Screened 300 V Flame Retardant 50m
RS Stock No. 408-996
Mfr. Part No.86601CY SL005
BrandAlpha Wire
$321.57
1 Reel of 30 Metre(s)
Reel(s)
1 0.2 mm² Twisted Pair 24 AWG 5.18mm SF/UTP PVC Black 54 Ω 10/0.16 mm Screened 300 V - 30m
RS Stock No. 409-236
Mfr. Part No.25483 BK005
BrandAlpha Wire
$609.96
1 Reel of 30 Metre(s)
Reel(s)
3 0.35 mm² Twisted Pair 22 AWG 6.32mm Foil PUR Black 70 Ω 7/0.25 mm Screened 300 V - 30m
RS Stock No. 807-8944
Mfr. Part No.0030914
BrandLapp
$401.21
1 Reel of 50 Metre(s)
Reel(s)
6 0.14 mm² FD CP 26 AWG 7.5mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
RS Stock No. 812-4703
BrandRS PRO
$651.13
1 Reel of 50 Metre(s)
Reel(s)
9 0.76 mm² Twisted Pair 22 AWG 11mm Aluminium Foil-PET Tape PVC Grey - 7/0.254 mm Screened - - 50m
RS Stock No. 187-2083
Mfr. Part No.5473L SL001
BrandAlpha Wire
$2.433
Each
units
3 0.22 mm² Twisted Pair 24 AWG 5.92mm Aluminium/Mylar Tape LSZH Grey 95 Ω 7/32 AWG - 300 V ac Low Smoke Zero Halogen (LSZH) -
RS Stock No. 832-4818
Mfr. Part No.78082
BrandAlpha Wire
$356.74
1 Reel of 30 Metre(s)
Reel(s)
2 0.382 mm² Twisted Pair 22 AWG 4.7mm Unshielded MPPE Grey 74 Ω 19/0.16 mm Unscreened 300 V Halogen Free 30m
RS Stock No. 608-3900
Mfr. Part No.0035161
BrandLapp
$163.17
1 Reel of 100 Metre(s)
Reel(s)
3 0.25 mm² LiYY 23 AWG 6.2mm U/UTP PVC Grey - 0.25 mm² Unscreened 500 V - 100m
RS Stock No. 608-4177
Mfr. Part No.0035811
BrandLapp
$677.73
1 Reel of 100 Metre(s)
Reel(s)
3 0.5 mm² LiYCY 20 AWG 8.7mm S/UTP PVC Grey - - Screened 500 V Flame Retardant 100m
RS Stock No. 382-633
Mfr. Part No.9519 060500
BrandBelden
$3,113.78
1 Box of 152 Metre(s)
Box(es)
19 0.2 mm² Twisted Pair 24 AWG 11.4mm F/UTP PVC Chrome 75 Ω 7/32 Screened 300 V Flame Retardant 152m
RS Stock No. 807-8988
Mfr. Part No.0030946
BrandLapp
$1,289.41
1 Reel of 100 Metre(s)
Reel(s)
2 0.75 mm² FD CP 19 AWG 9.9mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
RS Stock No. 136-8494
Mfr. Part No.78163 SL001
BrandAlpha Wire
$2,081.76
1 Reel of 305 Metre(s)
Reel(s)
3 0.15 mm² Twisted Pair 26 AWG 4.01mm Foil MPPE Grey 81 Ω 19/38 Screened 300 V Halogen Free 305m
RS Stock No. 807-9035
Mfr. Part No.0031325
BrandLapp
$236.59
1 Reel of 50 Metre(s)
Reel(s)
2 0.34 mm² Li2YCY 22 AWG 7.7mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 608-4206
Mfr. Part No.0035814
BrandLapp
$1,719.90
1 Reel of 100 Metre(s)
Reel(s)
8 0.5 mm² LiYCY 20 AWG 13.1mm S/UTP PVC Grey - 0.5 mm² Screened 500 V - 100m
RS Stock No. 187-1945
Mfr. Part No.2211C SL002
BrandAlpha Wire
$483.39
1 Reel of 152 Metre(s)
Reel(s)
1 0.35 mm² Twisted Pair 22 AWG 4.52mm Aluminium/Mylar Tape PVC Grey 41 Ω 7/30 AWG - 150 V ac - -