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 its 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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Viewing 1 - 20 of 41 products
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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. 499-5974
Mfr. Part No.KL1503510
BrandRittal
£31.20
Each
Units
- 300mm 200mm Steel - IP66 - - Grey - - - -
RS Stock No. 499-5930
Mfr. Part No.KL1514510
BrandRittal
£22.23
Each
Units
- 150mm 150mm Steel - IP66 - - - - - - -
RS Stock No. 499-5968
Mfr. Part No.KL1502510
BrandRittal
£28.08
Each
Units
- 200mm 200mm - - IP66 - - - - - - -
RS Stock No. 499-6494
Mfr. Part No.1507510
BrandRittal
£37.90
Each
Units
- 300mm 300mm Steel - IP66 - - Grey - - - -
RS Stock No. 499-5946
Mfr. Part No.KL1500510
BrandRittal
£24.78
Each
Units
- 150mm 150mm - - IP66 - - - - - - -
RS Stock No. 499-6163
Mfr. Part No.1530510
BrandRittal
£36.85
Each
Units
- 300mm 150mm - - IP66 - - - - - - -
RS Stock No. 499-5980
Mfr. Part No.KL1504510
BrandRittal
£35.23
Each
Units
- 400mm 200mm - - IP66 - - - - - - -
RS Stock No. 516-9968
Mfr. Part No.KL1512510
BrandRittal
£58.90
Each
Units
600mm 400mm 120mm Steel 600 x 400 x 120mm IP66 - - Grey - - - -
RS Stock No. 253-8939
Mfr. Part No.1521010
BrandRittal
£104.50
Each
Units
- - - - 150 x 150 x 85mm IP66 - - - - - - -
RS Stock No. 769-5043
Mfr. Part No.1535.510
BrandRittal
£47.69
Each
Units
300mm 120mm 300mm Steel 300 x 120 x 300mm IP65 - 4 Grey - - - -
RS Stock No. 499-5996
Mfr. Part No.KL1508510
BrandRittal
£41.47
Each
Units
- 400mm 300mm - - IP66 - - - - - - -
RS Stock No. 769-5046
Mfr. Part No.1539.510
BrandRittal
£61.40
Each
Units
400mm 120mm 400mm Steel 400 x 120 x 400mm IP65 - 4 Grey - - - -
RS Stock No. 499-6179
Mfr. Part No.1531510
BrandRittal
£39.63
Each
Units
- 300mm 200mm - - IP66 - - - - - - -
RS Stock No. 499-6191
Mfr. Part No.1532510
BrandRittal
£43.66
Each
Units
- 400mm 200mm - - IP66 - - - - - - -
RS Stock No. 499-6488
Mfr. Part No.1516510
BrandRittal
£26.05
Each
Units
- 200mm 200mm - - IP66 - - - - - - -
RS Stock No. 516-9952
Mfr. Part No.KL1505510
BrandRittal
£39.30
Each
Units
500mm 200mm 120mm Steel 500 x 200 x 120mm IP66 - - Grey - - - -
RS Stock No. 516-9687
Mfr. Part No.KL1501510
BrandRittal
£30.97
Each
Units
300mm 150mm 120mm Steel 300 x 150 x 120mm IP66 - - Grey - - - -
RS Stock No. 516-9946
Mfr. Part No.KL1515510
BrandRittal
£46.99
Each
Units
300mm 150mm 80mm Steel 300 x 150 x 80mm IP66 - - Grey - - - -
RS Stock No. 516-9750
Mfr. Part No.KL1537510
BrandRittal
£58.56
Each
Units
- 500mm 300mm - - IP55 - - - - - - -
RS Stock No. 168-058
Mfr. Part No.KL1511510
BrandRittal
£50.13
Each
Units
- - - - - IP66 - - - - - - -