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
£3.31
Each
Units
40 6mm - Steel Tin 4 - - - - - 12 V 86 x 56 x 7.5mm 7.5mm
RS Stock No. 433-703
BrandRS PRO
£1.902
Each (In a Pack of 5)
Units
36 6.35mm - - - 2 - - - - - - 117 x 38 x 7.5mm 38mm
RS Stock No. 433-781
BrandRS PRO
£1.642
Each (In a Pack of 10)
Units
28 6.3mm - - - - - - - 28.6mm - - 194 x 16.7 x 4mm 4mm
RS Stock No. 433-775
BrandRS PRO
£1.642
Each (In a Pack of 10)
Units
28 9.5mm - - - - - - - 28.6mm - - 266.7 x 17.9 x 10.6mm 10.6mm
RS Stock No. 425-415
BrandRS PRO
£0.748
Each (In a Pack of 10)
Units
1 - - Steel Zinc - M4 22 → 12 AWG Polyamide 11.2mm 20A 600 V 38 x 29 x 11mm 11mm
RS Stock No. 425-421
BrandRS PRO
£0.868
Each (In a Pack of 10)
Units
1 - - Steel Zinc - M4 22 → 12 AWG Polyamide 11.2mm 20A 600 V 38 x 29 x 11mm 11mm
RS Stock No. 804-5682
Mfr. Part No.3240171
£2.329
Each (In a Pack of 10)
Units
24 - Straight - - 1 M3 12 → 18 AWG Polyamide - 32A 450 V 117 x 18.6 x 15mm 15mm
RS Stock No. 885-9298
Mfr. Part No.24-140
£8.91
Each
Units
24 9.53mm Straight - - 2 5 → 40 16 AWG Phenolic 9.375 in 15A 250 V ac 245.3 x 22.2 x 10.3mm 10.3mm
RS Stock No. 782-2826
Mfr. Part No.1-1546306-4
£5.04
Each
Units
14 9.53mm - - - 2 - 22 → 12 AWG - - 20A 300 V - -
RS Stock No. 782-2009
Mfr. Part No.1546306-6
£1.514
Each (In a Pack of 5)
Units
6 9.53mm - Brass Tin 2 UNC 6-32 22 → 12 AWG Thermoplastic - 20A 300 V - -
RS Stock No. 782-1930
Mfr. Part No.1-1546306-0
£3.154
Each (In a Pack of 5)
Units
10 9.53mm - Brass Tin 2 UNC 6-32 22 → 12 AWG Thermoplastic - 20A 300 V - -
RS Stock No. 885-9276
Mfr. Part No.10-140
£5.13
Each
Units
10 9.53mm Straight Brass Nickel 2 5 → 40 16 AWG Phenolic 104.78mm 15A 250 V ac 111.94 x 22.23 x 10.31mm 10.31mm
RS Stock No. 782-1977
Mfr. Part No.1546306-3
£0.938
Each (In a Pack of 5)
Units
3 9.53mm - Brass Tin 2 UNC 6-32 22 → 12 AWG Thermoplastic - 20A 300 V - -
RS Stock No. 804-5758
Mfr. Part No.3240253
£1.922
Each (In a Pack of 25)
Units
- - - - - - - - - - - - - -
RS Stock No. 781-2677
Mfr. Part No.1546306-4
£1.26
Each (In a Pack of 5)
Units
4 9.53mm - Brass Tin 2 UNC 6-32 22 → 12 AWG Thermoplastic - 20A 300 V - -
RS Stock No. 717-6637
Mfr. Part No.8PCV-02-006
£0.41
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
RS Stock No. 168-0875
Mfr. Part No.8PCV-02-006
£1,572.53
1 Reel of 4000
Reel(s)
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
RS Stock No. 885-9336
Mfr. Part No.10-142
£8.02
Each
Units
10 14.3mm Straight Brass Nickel 2 8 → 32 10 AWG Phenolic 157.15mm 30A 250 V ac 167.49 x 33.32 x 15.88mm 15.88mm
RS Stock No. 627-2194
Mfr. Part No.ML-40-S1AXF-8P
BrandSato Parts
£3.90
Each
Units
8 7.62mm Straight - - 1 - - PBT - 10A 250 V 78.1 x 14 x 24mm 24mm
RS Stock No. 885-9279
Mfr. Part No.12-140
£5.99
Each
Units
12 9.53mm Straight Brass Nickel 2 5 → 40 16 AWG Phenolic 123.83mm 15A 250 V ac 130.99 x 22.23 x 10.31mm 10.31mm
Related Products
Double-row, dual barrier strips for wire-to-wire applications. These ...
Description:
Double-row, dual barrier strips for wire-to-wire applications. These parts also allow end users to complete the wiring to a separate screw without disturbing the factory wiring. Increased current-carrying capability.Materials used:Insulator Body: UL 94 V-0 thermoplastic, blackTerminal: Brass, tin platedScrew: #6-32 Steel, nickel-plated; M4.0 Steel, nickel-plated (14.3 mm). Closed Bottom Design ...
A range of single row low profile dual-barrier ...
Description:
A range of single row low profile dual-barrier barrier strips with a 9.53mm centreline. These dual-barrier barrier strips have a flat style block design and a wire clamp combo screw terminal head apart from stock numbers 821-2658 and 821-2642 which have a binding combo head.
The Molex 38720 series of barrier strips and ...
Description:
The Molex 38720 series of barrier strips and terminal blocks guarantee the highest quality and reliability.The 38720 range comes complete with a 9.53mm pitch size, blocks and strips are panel mounted ranging from 2 positions to 12 positions. Whilst terminal block models will go up to 12 way. Thermoplastic or ...
The Molex 38752 series of barrier strips and ...
Description:
The Molex 38752 series of barrier strips and terminal blocks guarantee the highest quality and reliability. The 38752 range comes complete with a 9.53mm pitch size, blocks and strips are panel mounted ranging from 2 positions to 20 positions. Whilst terminal block models will go up to 12 way.