Barrier Strips

Barrier strips are screw-type electrical connectors that allow more than one circuit to connect to another circuit. Wires are clamped down to a metal part by tightening of a screw. Multiple screw terminals are arranged such that the metal strips are separated by a barrier or insulating block. 


How do barrier strips work?


Each strip will have a pair of screws arranged such that each screw connects to a separate conductor on either end of the strip. Alternatively, terminal strips have several screws along two strips, creating a bus bar for the distribution of power.


Barrier strips can accommodate a broad range of wire sizes and provide reliable connection. The term “contact” refers to the wire attached to the barrier and the contact pitch refers to the distance between each contact, measured from the centre of each opening or hole.


Applications of Barrier strips


Barrier strips are extensively used in electrical wiring for distributing electricity, connecting switches, electrical outlets and lighting fixtures to the mains. They’re also used to directly connect major appliances such as ovens. You will also find barrier strips in surge protectors and speakers.


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Description Price Number of Contacts Pitch Body Orientation Contact Material Contact Plating Number of Rows Screw Size Wire Size Material Fixing Centre Current Rating Voltage Rating Dimensions Depth
RS Stock No. 123-4541
BrandRS Pro
TWD73
Each
units
40 6mm - Steel Tin 4 - - - - - 12 V 86 x 56 x 7.5mm 7.5mm
RS Stock No. 804-5758
Mfr. Part No.3240253
TWD93
Each (In a Pack of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 885-9285
Mfr. Part No.18-140
TWD283
Each
units
18 9.53mm Straight Brass Nickel 2 5 → 40 16 AWG Phenolic 180.98mm 15A 250 V ac 188.14 x 22.23 x 10.31mm 10.31mm
RS Stock No. 821-9016
Mfr. Part No.4-1437664-0
TWD155
Each
units
7 9.53mm Vertical Copper Alloy Tin 1 - 22 → 12 AWG Polyamide - 20A - - -
RS Stock No. 164-5915
Mfr. Part No.8-1437657-8
TWD74
Each (In a Bag of 120)
units
5 11.1mm Vertical Copper Alloy Tin 1 UNC 8-32 18 → 10 AWG Thermoplastic - 30A 600 V - -
RS Stock No. 164-5822
Mfr. Part No.4-1437664-0
TWD90
Each (In a Bag of 150)
units
7 9.53mm Vertical Copper Alloy Tin 1 - 22 → 12 AWG Polyamide - 20A - - -
RS Stock No. 821-8943
Mfr. Part No.8-1437657-8
TWD72
Each
units
5 11.1mm Vertical Copper Alloy Tin 1 UNC 8-32 18 → 10 AWG Thermoplastic - 30A 600 V - -
RS Stock No. 630-0794
Mfr. Part No.ML-50-S1AXF-5P
BrandSato Parts
TWD131
Each
units
5 10.16mm Straight - - 1 - - PBT - 15A 250 V 72.86 x 16.6 x 31mm 31mm
RS Stock No. 804-5749
Mfr. Part No.3240252
TWD85
Each (In a Pack of 25)
units
- - - - - - - - - - - - - -
RS Stock No. 822-7089
Mfr. Part No.38720-6206
BrandMolex
TWD90
Each
units
6 9.53mm Straight Brass Tin 1 6 → 32 22 → 14 AWG PBT - 15A 300 V 78.2 x 15.7 x 16.8mm 16.8mm
RS Stock No. 821-8896
Mfr. Part No.3-1437651-4
TWD47
Each
units
2 9.53mm Vertical Copper Alloy Tin 1 UNC 6-32 22 → 12 AWG Thermoplastic - 5 A, 25 A 300 V, 600 V - -
RS Stock No. 885-8484
Mfr. Part No.7-140
TWD96
Each
units
7 9.53mm Straight Brass Nickel 2 5 → 40 16 AWG Phenolic 76.2mm 15A 250 V ac 83.36 x 22.23 x 10.31mm 10.31mm
RS Stock No. 821-8836
Mfr. Part No.8-1437657-0
TWD98
Each
units
4 11.1mm Vertical Copper Alloy Tin 1 UNC 8-32 18 → 10 AWG Thermoplastic - 30A 600 V - -
RS Stock No. 885-9305
Mfr. Part No.8-140-Y
TWD168
Each
units
8 9.53mm Straight Brass Nickel 2 5 → 40 16 AWG Phenolic 85.73mm 15A 250 V ac 92.89 x 22.23 x 10.31mm 10.31mm
RS Stock No. 822-7051
Mfr. Part No.38720-3202
BrandMolex
TWD43
Each
units
2 9.53mm Straight Brass Tin 1 6 → 32 - Thermoplastic - - - 40.1 x 15.7 x 16.8mm 16.8mm
RS Stock No. 822-7206
Mfr. Part No.38770-0106
BrandMolex
TWD86
Each
units
6 9.53mm Straight Brass Nickel 2 6 → 32 - PBT - - - 73.8 x 22.4 x 11.2mm 11.2mm
RS Stock No. 822-7070
Mfr. Part No.38720-6204
BrandMolex
TWD75
Each
units
4 9.53mm Straight Brass Tin 1 6 → 32 22 → 14 AWG PBT - 15A 300 V 59.2 x 15.7 x 16.8mm 16.8mm
RS Stock No. 822-7076
Mfr. Part No.38720-6202
BrandMolex
TWD47
Each
units
2 9.53mm Straight Brass Tin 1 6 → 32 22 → 14 AWG PBT - 15A 300 V 40.1 x 15.7 x 16.8mm 16.8mm
RS Stock No. 822-7067
Mfr. Part No.38720-3206
BrandMolex
TWD102
Each
units
6 9.53mm Straight Brass Tin 1 6 → 32 - Thermoplastic - - - 78.2 x 15.7 x 16.8mm 16.8mm
RS Stock No. 717-6637
Mfr. Part No.8PCV-02-006
TWD23
Each
units
2 11.1mm Straight Copper Alloy Tin 1 M4 22 → 10 AWG Thermoplastic - 30A 600 V 0.947 x 0.8 x 0.77in 0.77in