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. 187-1980
Mfr. Part No.2463C SL001
BrandAlpha Wire
$5.731
Each
units
4 0.35 mm² Twisted Pair 22 AWG 6.4mm Aluminium/Mylar Tape PVC Grey 53 Ω 7/30 AWG - 300 V ac - -
RS Stock No. 802-345
Mfr. Part No.9505.00U305
BrandBelden
$897.55
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. 408-980
Mfr. Part No.86603CY SL005
BrandAlpha Wire
$561.22
1 Reel of 30 Metre(s)
Reel(s)
3 0.2 mm² Twisted Pair 24 AWG 6.91mm SF/UTP PVC Black 76 Ω 10/0.16 mm Screened 300 V - 30m
RS Stock No. 111-9262
Mfr. Part No.6016C SL005
BrandAlpha Wire
$931.24
1 Reel of 30 Metre(s)
Reel(s)
11 0.35 mm² Twisted Pair 22 AWG 12.27mm F/UTP PVC Grey 60 Ω 7/0.25 mm Screened 300 V Flame Retardant 30m
RS Stock No. 187-1986
Mfr. Part No.2467C SL005
BrandAlpha Wire
$10.924
Each
units
4 0.56 mm² Twisted Pair 20 AWG 9.22mm Aluminium/Mylar Tape PVC Grey 66 Ω 7/28 AWG - 300 V ac - -
RS Stock No. 175-7356
Mfr. Part No.B963031 GE033
BrandAlpha Wire
$349.48
1 Reel of 100 Metre(s)
Reel(s)
3 0.23 mm² Twisted Pair 24 AWG 5.66mm Unshielded PVC Grey 86 Ω 7/32 Unscreened 300 V Flame Retardant 100m
RS Stock No. 187-2088
Mfr. Part No.6391 SL001
BrandAlpha Wire
$4.569
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. 811-7402
BrandRS PRO
$735.42
1 Reel of 100 Metre(s)
Reel(s)
19 - Multicore 24 AWG 11.4mm Aluminium Foil-PET Tape PVC Grey 75 Ω 7/0.61 mm Screened 300 V - 100m
RS Stock No. 823-241
Mfr. Part No.8105.01152
BrandBelden
$1,707.84
1 Reel of 152 Metre(s)
Reel(s)
5 0.22 mm² Twisted Pair 24 AWG 8.03mm F/UTP PVC Chrome 100 Ω 7/32 Screened 30 V - 152m
RS Stock No. 187-2086
Mfr. Part No.6379 SL005
BrandAlpha Wire
$11.015
Each
units
8 - Twisted Pair 22 AWG 9.7mm Aluminium/Mylar Tape PVC Grey 70 Ω 7/38 AWG - 300 V ac - -
RS Stock No. 832-5212
Mfr. Part No.78384
BrandAlpha Wire
$719.88
1 Reel of 30 Metre(s)
Reel(s)
4 0.382 mm² Twisted Pair 22 AWG 6.3mm Foil and Braid MPPE Grey 69 Ω 19/0.16 mm Screened 300 V Halogen Free 30m
RS Stock No. 740-4822
Mfr. Part No.B963052 GE321
BrandAlpha Wire
$410.76
1 Reel of 50 Metre(s)
Reel(s)
5 0.23 mm² Twisted Pair 24 AWG 6.78mm Foil PVC Grey 76 Ω 7/32 Screened 300 V Flame Retardant 50m
RS Stock No. 740-4948
Mfr. Part No.B963054 GE321
BrandAlpha Wire
$366.89
1 Reel of 50 Metre(s)
Reel(s)
5 0.23 mm² Twisted Pair 24 AWG 7.39mm Foil and Braid PVC Grey 76 Ω 7/32 Screened 300 V Flame Retardant 50m
RS Stock No. 187-2081
Mfr. Part No.5471L SL001
BrandAlpha Wire
$1.157
Each
units
1 0.22 mm² Twisted Pair 24 AWG 4.11mm Aluminium/Mylar Tape LSZH Grey 68 Ω 7/32 AWG - 300 V ac - -
RS Stock No. 408-912
Mfr. Part No.86701CY SL005
BrandAlpha Wire
$312.10
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
RS Stock No. 807-8966
Mfr. Part No.0030930
BrandLapp
$455.67
1 Reel of 50 Metre(s)
Reel(s)
4 0.34 mm² FD CP 22 AWG 9.2mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
RS Stock No. 740-4954
Mfr. Part No.B963114 GE321
BrandAlpha Wire
$1,070.85
1 Reel of 50 Metre(s)
Reel(s)
11 0.23 mm² Twisted Pair 24 AWG 9.75mm Foil and Braid PVC Grey 82 Ω 7/32 Screened 300 V Flame Retardant 50m
RS Stock No. 740-4866
Mfr. Part No.B962033 GE321
BrandAlpha Wire
$394.24
1 Reel of 50 Metre(s)
Reel(s)
3 0.14 mm² Twisted Pair 26 AWG 5.77mm Braid PVC Grey 83 Ω 7/34 Screened 300 V Flame Retardant 50m
RS Stock No. 187-1950
Mfr. Part No.2219/12C SL001
BrandAlpha Wire
$9.495
Each
units
12 0.35 mm² Twisted Pair 22 AWG 11.1mm Aluminium/Mylar Tape PVC Grey 65 Ω 7/30 AWG - 150 V ac - -
RS Stock No. 175-7357
Mfr. Part No.B963054 GE033
BrandAlpha Wire
$451.29
1 Reel of 100 Metre(s)
Reel(s)
5 0.23 mm² Twisted Pair 24 AWG 7.39mm Foil and Braid PVC Grey 76 Ω 7/32 Screened 300 V Flame Retardant 100m
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