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. 253-8939
Mfr. Part No.1521010
BrandRittal
HK$1,195.48
Each
units
- - - - 150 x 150 x 85mm IP66 - - - - - - - -
RS Stock No. 454-999
Mfr. Part No.1SL0884A00
BrandABB
HK$312.87
Each
units
310mm 240mm 160mm Thermoplastic 310 x 240 x 160mm IP65 - - Grey - - - - -
RS Stock No. 768-5743
Mfr. Part No.KD5125
BrandHENSEL
HK$251.35
Each
units
88mm 88mm 53mm Thermoplastic 88 x 88 x 53mm IP66/67 5 7 Black - - 20A - -
RS Stock No. 535-1426
Mfr. Part No.GB80
BrandBartec
HK$780.67
Each
units
80mm 75mm 55mm Glass Fibre Reinforced PET 80 x 75 x 55mm IP66 5 + E 1 Black ATEX - 21A - -
RS Stock No. 398-8313
Mfr. Part No.0 920 02
BrandLegrand
HK$27.11
Each
units
- - 45mm - - IP55 - 4 Grey - - - 70mm -
RS Stock No. 842-8311
BrandRS PRO
HK$814.13
Each
units
300mm 150mm 80mm Stainless Steel 300 x 150 x 80mm IP66 - - Unpainted - - - - -
RS Stock No. 842-8336
BrandRS PRO
HK$900.81
Each
units
200mm 200mm 120mm Stainless Steel 200 x 200 x 120mm IP66 - - Unpainted - - - - -
RS Stock No. 122-046
BrandRS PRO
HK$322.69
Each
units
400mm 200mm 120mm Steel 400 x 200 x 120mm IP66 - - Grey - - - - -
RS Stock No. 263-0322
Mfr. Part No.12540201
BrandSpelsberg
HK$128.15
Each
units
94mm 65mm 57mm Polycarbonate 94 x 65 x 57mm IP66 - 6 Grey - - - - -
RS Stock No. 842-8308
BrandRS PRO
HK$224.00
Each
units
150mm 150mm 120mm Steel 150 x 150 x 120mm IP66 - - Grey - - - - -
RS Stock No. 749-1866
BrandRS PRO
HK$1,663.91
Each
units
200mm 80mm 200mm Stainless Steel 200 x 80 x 200mm IP66 - - Unpainted - - - - -
RS Stock No. 229-0700
Mfr. Part No.16880200.8
BrandRose
HK$689.73
Each
units
121mm 121mm 75mm Glass Fibre Reinforced PET 121 x 121 x 75mm IP66 6 2 Black ATEX - - - -
RS Stock No. 229-0637
Mfr. Part No.06252612.8
BrandRose
HK$3,095.87
Each
units
120mm 255mm 250mm Glass Fibre Reinforced PET 120 x 255 x 250mm IP66 20 6 Black ATEX - - - -
RS Stock No. 499-5980
Mfr. Part No.KL1504510
BrandRittal
HK$419.89
Each
units
- 400mm 200mm - - IP66 - - - - - - - -
RS Stock No. 749-1888
BrandRS PRO
HK$468.83
Each
units
150mm 80mm 150mm Mild Steel 150 x 80 x 150mm IP66 - - Grey - - - - -
RS Stock No. 842-8493
BrandRS PRO
HK$591.72
Each
units
150mm 300mm 120mm Steel 150 x 300 x 120mm IP65 - - Grey - - - - -
RS Stock No. 229-0665
Mfr. Part No.06121209.8
BrandRose
HK$1,472.90
Each
units
122mm 120mm 90mm Glass Fibre Reinforced PET 122 x 120 x 90mm IP66 10 2 Black ATEX - - - -
RS Stock No. 700-0808
Mfr. Part No.COMBI 108/5
BrandWISKA
HK$50.03
Each (In a Pack of 10)
units
76mm 76mm 51mm Polypropylene 76 x 76 x 51mm IP66 - 12 Grey - - - - -
RS Stock No. 704-8444
Mfr. Part No.0 303 26
BrandLegrand
HK$90.83
Each
units
110mm 110mm 50mm PVC 110 x 110 x 50mm IP40 - - White - - - - -
RS Stock No. 398-2494
Mfr. Part No.0 920 20
BrandLegrand
HK$66.92
Each
units
105mm 105mm 55mm ABS 105 x 105 x 55mm IP55 - - Grey - - - - -
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