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. 408-978
Mfr. Part No.86606CY SL005
BrandAlpha Wire
$513.15
1 Reel of 30 Metre(s)
Reel(s)
6 0.2 mm² Twisted Pair 24 AWG 8.56mm SF/UTP PVC Black 82 Ω 10/0.16 mm Screened 300 V - 30m
RS Stock No. 740-4822
Mfr. Part No.B963052 GE321
BrandAlpha Wire
$441.16
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. 608-3988
Mfr. Part No.0035174
BrandLapp
$649.02
1 Reel of 100 Metre(s)
Reel(s)
8 0.5 mm² LiYY 20 AWG 12.2mm U/UTP PVC Grey - 0.5 mm² Unscreened 500 V - 100m
RS Stock No. 823-156
Mfr. Part No.8774 060100
BrandBelden
$1,089.48
1 Reel of 30 Metre(s)
Reel(s)
9 0.33 mm² Twisted Pair 22 AWG 10.59mm U/STP PVC Chrome 50 Ω 7/30 Screened 30 V Flame Retardant 30m
RS Stock No. 807-8969
Mfr. Part No.0030932
BrandLapp
$632.45
1 Reel of 50 Metre(s)
Reel(s)
6 0.34 mm² FD CP 22 AWG 10.6mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
RS Stock No. 168-3072
Mfr. Part No.6012C SL001
BrandAlpha Wire
$1,678.47
1 Reel of 304 Metre(s)
Reel(s)
6 0.35 mm² Twisted Pair 22 AWG 9.6mm F/UTP PVC Grey 60 Ω 7/0.25 mm Screened 300 V Flame Retardant 304m
RS Stock No. 740-4761
Mfr. Part No.B963041 GE321
BrandAlpha Wire
$164.21
1 Reel of 50 Metre(s)
Reel(s)
4 0.23 mm² Twisted Pair 24 AWG 6.15mm Unshielded PVC Grey 86 Ω 7/32 Unscreened 300 V Flame Retardant 50m
RS Stock No. 382-582
Mfr. Part No.9504.00U152
BrandBelden
$600.98
1 Box of 152 Metre(s)
Box(es)
4 0.2 mm² Twisted Pair 24 AWG 6.73mm SF/UTP PVC Chrome 75 Ω 7/32 Screened 300 V Flame Retardant 152m
RS Stock No. 807-9054
Mfr. Part No.0031331
BrandLapp
$231.44
1 Reel of 50 Metre(s)
Reel(s)
3 0.5 mm² Li2YCY 20 AWG 9.3mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 187-2072
Mfr. Part No.6376 SL005
BrandAlpha Wire
$7.294
Each
units
5 0.35 mm² Twisted Pair 22 AWG 8.33mm Aluminium/Mylar Tape PVC Grey 70 Ω 7/38 AWG - 300 V ac - -
RS Stock No. 382-7353
Mfr. Part No.9506NH.00500
BrandBelden
$2,555.12
1 Box of 500 Metre(s)
Box(es)
6 0.2 mm² Twisted Pair 24 AWG 7.6mm F/UTP LSZH Chrome - 7/32 Screened 300 V - 500m
RS Stock No. 382-576
Mfr. Part No.9501.00U305
BrandBelden
$491.96
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. 807-9051
Mfr. Part No.0031333
BrandLapp
$457.39
1 Reel of 50 Metre(s)
Reel(s)
8 0.5 mm² Li2YCY 20 AWG 12.7mm S/UTP PVC Grey 100 Ω - Screened 250 V Flame Retardant -
RS Stock No. 187-2071
Mfr. Part No.6376 SL001
BrandAlpha Wire
$5.318
Each
units
5 0.35 mm² Twisted Pair 22 AWG 8.33mm Aluminium/Mylar Tape PVC Grey 70 Ω 7/38 AWG - 300 V ac - -