Junction Boxes

What are junction boxes used for?

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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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 Series
RS Stock No. 749-1888
BrandRS PRO
$112.03
Each
units
150mm 80mm 150mm Mild Steel 150 x 80 x 150mm IP66 - - Grey - - - - -
RS Stock No. 776-7659
BrandRS PRO
$3.148
Each (In a Pack of 5)
units
- - - - - IP2X 3 4 Black - Selective entry 30A 76mm -
RS Stock No. 749-1854
BrandRS PRO
$424.08
Each
units
200mm 120mm 200mm Stainless Steel 200 x 120 x 200mm IP66 - - Unpainted - - - - -
RS Stock No. 842-8493
BrandRS PRO
$104.97
Each
units
150mm 300mm 120mm Steel 150 x 300 x 120mm IP65 - 0 Grey - - - - -
RS Stock No. 842-8311
BrandRS PRO
$167.40
Each
units
300mm 150mm 80mm Stainless Steel 300 x 150 x 80mm IP66 - 0 Unpainted - - - - -
RS Stock No. 122-046
BrandRS PRO
$87.88
Each
units
400mm 200mm 120mm Steel 400 x 200 x 120mm IP66 - - Grey - - - - -
RS Stock No. 144-4450
BrandRS PRO
$41.56
Each
units
80mm 75mm 55mm GRP 80 x 75 x 55mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 144-4457
BrandRS PRO
$109.62
Each
units
220mm 120mm 90mm GRP 220 x 120 x 90mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 144-4454
BrandRS PRO
$61.69
Each
units
160mm 75mm 75mm GRP 160 x 75 x 75mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 842-8507
BrandRS PRO
$113.19
Each
units
200mm 300mm 120mm Steel 200 x 300 x 120mm IP65 - 0 Grey - - - - -
RS Stock No. 144-4458
BrandRS PRO
$236.04
Each
units
255mm 250mm 120mm GRP 255 x 250 x 120mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 144-4456
BrandRS PRO
$58.83
Each
units
190mm 75mm 55mm GRP 190 x 75 x 55mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 776-7652
BrandRS PRO
$3.048
Each (In a Pack of 5)
units
- - - - - IP2X 6 4 Black - Selective entry 20A 86mm -
RS Stock No. 749-1891
BrandRS PRO
$143.20
Each
units
300mm 120mm 200mm Mild Steel 300 x 120 x 200mm IP66 - - Grey - - - - -
RS Stock No. 144-4455
BrandRS PRO
$110.65
Each
units
160mm 160mm 90mm GRP 160 x 160 x 90mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 144-4452
BrandRS PRO
$74.77
Each
units
122mm 120mm 90mm GRP 122 x 120 x 90mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 144-1348
BrandRS PRO
$216.05
Each
units
150mm 150mm 80mm Stainless Steel 316 150 x 150 x 80mm IP66 - 0 Blue - - - - -
RS Stock No. 842-8490
BrandRS PRO
$99.13
Each
units
150mm 300mm 80mm Steel 150 x 300 x 80mm IP65 - 0 Grey - - - - -
RS Stock No. 144-4460
BrandRS PRO
$190.18
Each
units
360mm 160mm 90mm GRP 360 x 160 x 90mm IP66 - - Black ATEX, IECEx - - - -
RS Stock No. 758-7059
BrandRS PRO
$294.59
Each
units
175mm 175mm 120mm Stainless Steel 175 x 175 x 120mm IP66 - - Unpainted - - - - -
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