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庫存編號 608-4199
製造零件編號0035813
BrandLapp
HK$3,674.11
毎卷:100 米
Reel(s)
6 0.5 mm² LiYCY 20 AWG 11.1mm S/UTP PVC Grey - - Screened 500 V Flame Retardant 100m
RS庫存編號 408-867
製造零件編號86504CY SL005
BrandAlpha Wire
HK$2,149.78
毎卷:30 米
Reel(s)
4 0.14 mm² Twisted Pair 26 AWG 6.91mm SF/UTP PVC Grey 83 Ω 7/0.16 mm Screened 300 V - 30m
RS庫存編號 807-9231
製造零件編號0038708
BrandLapp
HK$5,048.19
毎卷:50 米
Reel(s)
8 0.75 mm² LiHCH 18 AWG 14.9mm S/UTP - Grey - - Screened 250 V Flame Retardant -
全新
RS庫存編號 187-1955
製造零件編號2242C SL001
BrandAlpha Wire
HK$21.398
單位
2 0.81 mm² Twisted Pair 18 AWG 8.81mm Aluminium/Mylar Tape PVC Grey 49 Ω 16/30 AWG - 300 V ac - -
RS庫存編號 408-873
製造零件編號86401CY SL005
BrandAlpha Wire
HK$1,019.32
毎卷:30 米
Reel(s)
1 0.09 mm² Twisted Pair 28 AWG 4.72mm SF/UTP PVC Grey 70 Ω 7/0.13 mm Screened 300 V - 30m
RS庫存編號 740-4787
製造零件編號B966021 GE321
BrandAlpha Wire
HK$1,154.14
毎卷:50 米
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庫存編號 812-4716
BrandRS PRO
HK$3,197.17
毎卷:100 米
Reel(s)
10 - Twisted Pair 24 AWG 9.1mm Tinned Copper PVC Grey - 7/0.2 mm Screened - - -
RS庫存編號 807-8950
製造零件編號0030923
BrandLapp
HK$3,985.39
毎卷:50 米
Reel(s)
6 0.25 mm² FD CP 24 AWG 9.3mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
RS庫存編號 382-232
製造零件編號3600B-68
Brand3M
HK$184.52
單位
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庫存編號 807-8991
製造零件編號0030956
BrandLapp
HK$4,338.32
毎卷:50 米
Reel(s)
2 1 mm² FD CP 18 AWG 10.6mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
RS庫存編號 740-4793
製造零件編號B961032 GE321
BrandAlpha Wire
HK$2,006.41
毎卷:50 米
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庫存編號 807-9237
製造零件編號0038704
BrandLapp
HK$2,797.46
毎卷:50 米
Reel(s)
4 0.75 mm² LiHCH 18 AWG 10.9mm S/UTP - Grey - - Screened 250 V Flame Retardant -
RS庫存編號 832-4815
製造零件編號78073
BrandAlpha Wire
HK$1,837.33
毎卷:30 米
Reel(s)
3 0.241 mm² Twisted Pair 24 AWG 4.37mm Unshielded MPPE Grey 82 Ω 19/0.127 mm Unscreened 300 V Halogen Free 30m
RS庫存編號 740-4825
製造零件編號B963032 GE321
BrandAlpha Wire
HK$1,624.53
毎卷:50 米
Reel(s)
3 0.23 mm² Twisted Pair 24 AWG 5.77mm Foil PVC Grey 76 Ω 7/32 Screened 300 V Flame Retardant 50m
全新
RS庫存編號 187-2062
製造零件編號6363 SL001
BrandAlpha Wire
HK$25.748
單位
3 0.23 mm² Twisted Pair 24 AWG 6.6mm Aluminium/Mylar Tape PVC Grey 75 Ω 7/32 AWG - 300 V ac - -
RS庫存編號 408-877
製造零件編號86403CY SL005
BrandAlpha Wire
HK$1,901.77
毎卷:30 米
Reel(s)
3 0.09 mm² Twisted Pair 28 AWG 6.1mm SF/UTP PVC Grey 90 Ω 7/0.13 mm Screened 300 V - 30m
RS庫存編號 832-4979
製造零件編號78232 SL005
BrandAlpha Wire
HK$2,845.26
毎卷:30 米
Reel(s)
2 0.382 mm² Twisted Pair 22 AWG 5.31mm Foil MPPE Grey 43 Ω 19/0.16 mm Screened 300 V Halogen Free 30m
RS庫存編號 812-4719
BrandRS PRO
HK$3,113.06
毎卷:100 米
Reel(s)
15 - Twisted Pair 24 AWG 10.8mm Tinned Copper PVC Grey - 7/0.2 mm Screened - - -
RS庫存編號 807-8981
製造零件編號0030948
BrandLapp
HK$5,328.42
毎卷:50 米
Reel(s)
4 0.75 mm² FD CP 19 AWG 11.8mm S/UTP PUR Grey - - Screened 250 V Flame Retardant -
全新
RS庫存編號 187-2009
製造零件編號3475C SL005
BrandAlpha Wire
HK$255.023
單位
5 0.09 mm² Twisted Pair 28 AWG 6.93mm Aluminium/Mylar Tape PVC Grey - 7/36 AWG - 300 V ac - -