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 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 Series
RS Stock No. 730-363
Mfr. Part No.GB 122 - 730363
BrandBartec
HK$1,136.44
Each
units
122mm 120mm 90mm Glass Fibre Reinforced PET 122 x 120 x 90mm IP66 10 6 Black ATEX - 15A - -
RS Stock No. 229-0693
Mfr. Part No.16880300.8
BrandRose
HK$732.87
Each
units
161mm 161mm 95mm Glass Fibre Reinforced PET 161 x 161 x 95mm IP66 12 - Black ATEX - - - -
RS Stock No. 455-037
Mfr. Part No.1SL0882A00
BrandABB
HK$186.28
Each
units
220mm 170mm 150mm Thermoplastic 220 x 170 x 150mm IP65 - - Grey - - - - -
RS Stock No. 455-071
Mfr. Part No.1SL0856A00
BrandABB
HK$98.64
Each
units
220mm 170mm 80mm Thermoplastic 200 x 170 x 80mm IP65 - - Grey - - - - -
RS Stock No. 151-628
Mfr. Part No.ENN05001
HK$11.19
Each (In a Pack of 5)
units
- - 40mm ABS - IP55 - 4 Grey - - - 60mm -
RS Stock No. 901-0696
Mfr. Part No.JB12510ARD
BrandMoflash
HK$6,040.00
Each
units
125mm 125mm 90mm Stainless Steel 125 x 125 x 90mm IP66 10 4 Red ATEX, IECEx - - - -
RS Stock No. 151-612
Mfr. Part No.ENN05002
HK$11.348
Each (In a Pack of 5)
units
65mm 45mm 65mm ABS 88 x 88 x 45mm IP55 - 4 Grey - - - - -
RS Stock No. 454-955
Mfr. Part No.00846
BrandABB
HK$26.02
Each
units
100mm 100mm 50mm Thermoplastic 100 x 100x 50mm IP65 - - Grey - - - - -
RS Stock No. 455-706
Mfr. Part No.M128120020
BrandABB
HK$208.16
Each
units
- 275mm 220mm - - IP65 - - - - - - - -
RS Stock No. 151-791
Mfr. Part No.ENN05013
HK$217.37
Each
units
175mm 100mm 225mm Polypropylene 175 x 100 x 225mm IP55 - 12 Grey - - - - -
RS Stock No. 455-756
Mfr. Part No.12804
BrandABB
HK$206.18
Each
units
140mm 140mm 220mm Polycarbonate 140 x 140 x 220mm IP65 - - White - - - - -
RS Stock No. 122-103
BrandRS PRO
HK$175.27
Each
units
150mm 150mm 80mm Steel 150 x 150 x 80mm IP66 - - Grey - - - - -
RS Stock No. 151-713
Mfr. Part No.ENN05004
HK$20.804
Each (In a Pack of 5)
units
80mm 45mm 80mm ABS 80 x 45 x 80mm IP55 - 7 Grey - - - - -
RS Stock No. 455-059
Mfr. Part No.1SL0862A00
BrandABB
HK$133.94
Each
units
220mm 170mm 150mm Thermoplastic 220 x 170 x 150mm IP65 - - Grey - - - - -
RS Stock No. 906-0436
Mfr. Part No.TMC-4PG
HK$149.81
Each
units
60mm 40mm 24mm Plastic 60 x 40 x 24mm IP65 4 2 Grey - M3 15A - -
RS Stock No. 705-1709
Mfr. Part No.K56506GRY
HK$210.60
Each
units
95mm 95mm 65mm - 95 x 95 x 65mm IP66 4 4 Grey - M20 Knock out 30A - -
RS Stock No. 516-9687
Mfr. Part No.KL1501510
BrandRittal
HK$319.31
Each
units
300mm 150mm 120mm Steel 300 x 150 x 120mm IP66 - - Grey - - - - -
RS Stock No. 730-385
Mfr. Part No.GB 255 - 730385
BrandBartec
HK$1,957.21
Each
units
255mm 250mm 120mm Glass Fibre Reinforced PET 255 x 250 x 120mm IP66 20 8 Black ATEX - 11.5A - -
RS Stock No. 229-0766
Mfr. Part No.15122208.8
BrandRose
HK$878.51
Each
units
220mm 120mm 80mm Aluminium 220 x 120 x 80mm IP66 20 2 Grey ATEX - - - -
RS Stock No. 122-030
BrandRS PRO
HK$273.50
Each
units
300mm 200mm 120mm Steel 300 x 200 x 120mm IP66 - - Grey - - - - -
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