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. 608-3950
Mfr. Part No.0035170
BrandLapp
$174.24
1 Reel of 100 Metre(s)
Reel(s)
2 0.5 mm² LiYY 20 AWG 7.9mm U/UTP PVC Grey - - Unscreened 500 V Flame Retardant 100m
RS Stock No. 807-9231
Mfr. Part No.0038708
BrandLapp
$993.30
1 Reel of 50 Metre(s)
Reel(s)
8 0.75 mm² LiHCH 18 AWG 14.9mm S/UTP - Grey - - Screened 250 V Flame Retardant -
RS Stock No. 608-4048
Mfr. Part No.0035101
BrandLapp
$75.86
1 Reel of 100 Metre(s)
Reel(s)
2 0.14 mm² LiYY 26 AWG 4.8mm U/UTP PVC Grey - - Unscreened 350 V Flame Retardant 100m
RS Stock No. 812-4753
BrandRS PRO
$401.18
1 Reel of 100 Metre(s)
Reel(s)
2 0.76 mm² Multicore 24 AWG 4.2mm Aluminium Foil-PET Tape LSZH Grey - 7/0.254 mm Screened - - 100m
RS Stock No. 382-7189
Mfr. Part No.8205NH.00305
BrandBelden
$507.52
1 Reel of 304 Metre(s)
Reel(s)
1 0.5 mm² Twisted Pair 20 AWG 5.1mm - LSZH Chrome - 7/28 Unscreened 300 V - 304m
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. 812-4757
BrandRS PRO
$90.38
1 Reel of 100 Metre(s)
Reel(s)
2 0.22 mm² Multicore 24 AWG 5.5mm Tinned Copper LSZH Grey 100 Ω 7/0.2 mm Screened - - 100m
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. 382-7224
Mfr. Part No.8761NH.00305
BrandBelden
$824.38
1 Reel of 304 Metre(s)
Reel(s)
1 0.35 mm² Twisted Pair 22 AWG 4.9mm F/UTP LSZH Chrome - 7/30 Screened 300 V Flame Retardant, Low Smoke Zero Halogen (LSZH) 304m
RS Stock No. 331-8988
Mfr. Part No.8162 060500
BrandBelden
$1,713.65
1 Reel of 152 Metre(s)
Reel(s)
2 0.23 mm² Twisted Pair 24 AWG 8.71mm SF/FTP PVC Grey 100 Ω 7/32 Screened 300 V - 152m
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. 811-7421
BrandRS PRO
$177.71
1 Reel of 100 Metre(s)
Reel(s)
2 - Twisted Pair 22 AWG 4.06mm Aluminium Foil-PET Tape PVC Grey 45 Ω 7/0.77 mm Screened 300 V - 100m
RS Stock No. 749-1579
Mfr. Part No.6460 OR005
BrandAlpha Wire
$92.98
1 Reel of 30 Metre(s)
Reel(s)
- 0.33 mm² - 22 AWG 4.97mm - - Orange - 7/0.24 mm Screened 300 V - 30m
RS Stock No. 802-373
Mfr. Part No.9729.003
BrandBelden
$270.92
1 Reel of 30 Metre(s)
Reel(s)
2 0.22 mm² Twisted Pair 24 AWG 6.76mm U/STP PVC Chrome 100 Ω 7/32 Screened 300 V - 30m
RS Stock No. 705-6029
Mfr. Part No.5480/25C SL005
BrandAlpha Wire
$322.60
1 Reel of 30 Metre(s)
Reel(s)
25 0.23 mm² Twisted Pair 24 AWG 13.39mm F/UTP PVC Grey 82 Ω 7/0.2 mm Screened 300 V - 30m
RS Stock No. 362-550
Mfr. Part No.44A1121-24-0/9-9
$684.42
1 Reel of 100 Metre(s)
Reel(s)
1 0.25 mm² Type 44 24 AWG 3.05mm S/UTP - White - 19/0.13 mm Screened 600 V Flame Retardant, Low Smoke Density, Self-extinguishing 100m
RS Stock No. 608-4161
Mfr. Part No.0035810
BrandLapp
$326.52
1 Reel of 100 Metre(s)
Reel(s)
2 0.5 mm² LiYCY 20 AWG 8.6mm S/UTP PVC Grey - - Screened 500 V Flame Retardant 100m
RS Stock No. 673-3191
Mfr. Part No.5473L SL005
BrandAlpha Wire
$157.73
1 Reel of 30 Metre(s)
Reel(s)
3 0.22 mm² Twisted Pair 24 AWG 5.79mm F/UTP LSZH Grey 95 Ω 7/0.2 mm Screened 300 V - 30m
RS Stock No. 331-8900
Mfr. Part No.9842.00152
BrandBelden
$1,314.39
1 Reel of 152 Metre(s)
Reel(s)
2 0.2 mm² Twisted Pair 24 AWG 8.64mm SF/UTP PVC Chrome 120 Ω 7/32 Screened 30 V - 152m
RS Stock No. 126-5191
Mfr. Part No.5473C SL001
BrandAlpha Wire
$589.96
1 Reel of 304 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 304m