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. 455-706
Mfr. Part No.M128120020
BrandABB
SGD52.39
Each
units
- 275mm 220mm - - IP65 - - - - - - - -
RS Stock No. 454-955
Mfr. Part No.00846
BrandABB
SGD7.25
Each
units
100mm 100mm 50mm Thermoplastic 100 x 100x 50mm IP65 - - Grey - - - - -
RS Stock No. 455-071
Mfr. Part No.1SL0856A00
BrandABB
SGD47.03
Each
units
220mm 170mm 80mm Thermoplastic 200 x 170 x 80mm IP65 - - Grey - - - - -
RS Stock No. 455-716
Mfr. Part No.12814
BrandABB
SGD96.94
Each
units
- 275mm 370mm - - IP65 - - - - - - - -
RS Stock No. 455-700
Mfr. Part No.12816
BrandABB
SGD90.99
Each
units
- 275mm 570mm - - IP65 - - - - - - - -
RS Stock No. 455-712
Mfr. Part No.12808
BrandABB
SGD49.31
Each
units
140mm 205mm 220mm - - IP65 - - - - - - - -
RS Stock No. 455-065
Mfr. Part No.1SL0854A00
BrandABB
SGD21.23
Each
units
160mm 135mm 77mm Thermoplastic 160 x 135 x 77mm IP65 - - Grey - - - - -
RS Stock No. 454-949
Mfr. Part No.00851
BrandABB
SGD8.57
Each
units
100mm 100mm 80mm Thermoplastic 100 x 100 x 80mm IP65 - - Grey - - - - -
RS Stock No. 455-756
Mfr. Part No.12804
BrandABB
SGD38.35
Each
units
140mm 140mm 220mm Polycarbonate 140 x 140 x 220mm IP65 - - White - - - - -
RS Stock No. 454-943
Mfr. Part No.00852
BrandABB
SGD13.08
Each
units
153mm 110mm 66mm Thermoplastic 153 x 110 x 66mm IP65 - - Grey - - - - -
RS Stock No. 455-009
Mfr. Part No.1SL0876A00
BrandABB
SGD28.14
Each
units
220mm 170mm 80mm Thermoplastic 220 x 170 x 80mm IP65 - - Grey - - - - -
RS Stock No. 455-075
Mfr. Part No.1SL0858A00
BrandABB
SGD61.10
Each
units
310mm 240mm 110mm Thermoplastic 310 x 240 x 110mm IP65 - - Grey - - - - -
RS Stock No. 454-993
Mfr. Part No.00816
BrandABB
SGD10.87
Each
units
100mm 100mm 50mm Thermoplastic 50 x 100 x 100 mm IP55 - - Grey - - - - -
RS Stock No. 455-053
Mfr. Part No.00800
BrandABB
SGD2.75
Each
units
- - 35mm Thermoplastic - IP44 - - Grey - - - 60mm -
RS Stock No. 454-983
Mfr. Part No.00810
BrandABB
SGD2.87
Each
units
40mm 80mm 80mm Thermoplastic 40 x 80 x 80mm IP44 - - Grey - - - - -
RS Stock No. 455-047
Mfr. Part No.1SL0880A0O
BrandABB
SGD29.19
Each
units
160mm 135mm 150mm Thermoplastic 160 x 135 x 150mm IP65 - - Grey - - - - -
RS Stock No. 455-003
Mfr. Part No.1SL0864A00
BrandABB
SGD50.66
Each
units
310mm 240mm 160mm Thermoplastic 310 x 240 x 160mm IP65 - - Grey - - - - -
RS Stock No. 455-019
Mfr. Part No.1SL0830A00
BrandABB
SGD20.52
Each
units
150mm 160mm 135mm Thermoplastic 150 x 160 x 135mm IP55 - - Grey - - - - -
RS Stock No. 454-971
Mfr. Part No.00872
BrandABB
SGD19.23
Each
units
153mm 110mm 66mm Thermoplastic 153 x 110 x 66mm IP55 - - Grey - - - - -
RS Stock No. 454-977
Mfr. Part No.00821
BrandABB
SGD9.03
Each
units
100mm 100mm 80mm Thermoplastic 80 x 100 x 100mm IP55 - - Grey - - - - -