Junction Boxes

Junction boxes primary purpose is to connect and protect wiring that carry electrical current ensuring safe connections and security from the elements and unqualified engineers. Junction boxes are available in a variety of sizes, material types and colours. They are found in Industrial and commercial applications.


How do junction boxes work?


A junction box upon inspection offers points of entry for lighting and electrical cable, so it’s very important to have the correct junction box for the application. These points of entry consist of a knockout, integrated thread or self-sealing membranes.

Internally there are mounting points for screws in each corner, use the correct masonry plugs, anchors and fixings for the surface you are mounting to. Once the junction box has been mounted and all cables prepared, wire connections can be made using the correct cable terminals and splices. A sealed box lid or box cover then provides security for all the internal components.


What materials are they made from?


Junction boxes are made from various materials such as; ABS, Aluminium, Carbon Steel, Duro-plastic, Galvanised Steel, Glass Fibre Reinforced PET, GRP, Mild Steel, Nickel-Plated Steel, Plastic, Polyamide, Polybutylene Terephthalate, Polycarbonate, Polyester, Polypropylene, Polystyrene, PVC, Stainless Steel, Steel and Thermoplastic.


Where would you find junction boxes?


  • Lighting installation
  • Housing and wiring connections

Types of Junction boxes


Typical types of junction boxes include;


  • One-gang
  • Two-gang
  • Metal pancake
  • Four-square

What IP ratings are available?


IP ratings such as; IP20, IP2X, IP40, IP44, IP54, IP55, IP65, IP66, IP67 and IP68 are available


(IP) Ingress Protection and what it means


IP rating classifies the degrees of protection provided against the intrusion of solid objects (including body parts like hands and fingers), dust, accidental contact, and water in electrical enclosures.


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Description Price Length Width Height Material Dimensions L x W x H IP Rating Number of Terminals Number of Ways Colour Hazardous Area Certification Cable Entry Current Rating Diameter
RS Stock No. 776-7659
BrandRS PRO
£1.556
Each (In a Pack of 5)
Units
- - - - - IP2X 3 4 Black - Selective entry 30A 76mm
RS Stock No. 749-1857
BrandRS PRO
£61.27
Each
Units
150mm 80mm 150mm Stainless Steel 150 x 80 x 150mm IP66 - - Unpainted - - - -
RS Stock No. 122-030
BrandRS PRO
£31.32
Each
Units
300mm 200mm 120mm Steel 300 x 200 x 120mm IP66 - - Grey - - - -
RS Stock No. 776-7646
BrandRS PRO
£1.17
Each (In a Pack of 5)
Units
- - - - - IP2X 4 4 Black - Selective entry 5A 62mm
RS Stock No. 842-8311
BrandRS PRO
£86.71
Each
Units
300mm 150mm 80mm Stainless Steel 300 x 150 x 80mm IP66 - 0 Unpainted - - - -
RS Stock No. 122-103
BrandRS PRO
£22.68
Each
Units
150mm 150mm 80mm Steel 150 x 150 x 80mm IP66 - - Grey - - - -
RS Stock No. 842-8330
BrandRS PRO
£60.71
Each
Units
150mm 150mm 80mm Stainless Steel 150 x 150 x 80mm IP66 - 0 Unpainted - - - -
RS Stock No. 842-8336
BrandRS PRO
£95.96
Each
Units
200mm 200mm 120mm Stainless Steel 200 x 200 x 120mm IP66 - 0 Unpainted - - - -
RS Stock No. 749-1872
BrandRS PRO
£217.19
Each
Units
300mm 120mm 300mm Stainless Steel 300 x 120 x 300mm IP66 - - Unpainted - - - -
RS Stock No. 776-7640
BrandRS PRO
£1.30
Each (In a Pack of 5)
Units
- - - - - IP2X 4 4 Black - Selective entry 20A 76mm
RS Stock No. 122-046
BrandRS PRO
£35.04
Each
Units
400mm 200mm 120mm Steel 400 x 200 x 120mm IP66 - - Grey - - - -
RS Stock No. 749-1854
BrandRS PRO
£93.91
Each
Units
200mm 120mm 200mm Stainless Steel 200 x 120 x 200mm IP66 - - Unpainted - - - -
RS Stock No. 122-068
BrandRS PRO
£41.21
Each
Units
400mm 300mm 120mm Steel 400 x 300 x 120mm IP66 - - Grey - - - -
RS Stock No. 749-1860
BrandRS PRO
£97.53
Each
Units
150mm 80mm 150mm Stainless Steel 150 x 80 x 150mm IP66 - - Unpainted - - - -
RS Stock No. 842-8308
BrandRS PRO
£22.25
Each
Units
150mm 150mm 120mm Steel 150 x 150 x 120mm IP66 - 0 Grey - - - -
RS Stock No. 122-052
BrandRS PRO
£36.29
Each
Units
300mm 300mm 120mm Steel 300 x 300 x 120mm IP66 - - Grey - - - -
RS Stock No. 749-1888
BrandRS PRO
£37.35
Each
Units
150mm 80mm 150mm Mild Steel 150 x 80 x 150mm IP66 - - Grey - - - -
RS Stock No. 842-8320
BrandRS PRO
£124.14
Each
Units
300mm 200mm 120mm Stainless Steel 300 x 200 x 120mm IP66 - 0 Unpainted - - - -
RS Stock No. 758-7046
BrandRS PRO
£80.48
Each
Units
300mm 150mm 80mm Stainless Steel 300 x 150 x 80mm IP66 - - Unpainted - - - -
RS Stock No. 842-8318
BrandRS PRO
£102.00
Each
Units
300mm 150mm 120mm Stainless Steel 300 x 150 x 120mm IP66 - 0 Unpainted - - - -
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