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. 365-9239
Mfr. Part No.80390701
BrandSpelsberg
MYR24.49
Each (In a Pack of 3)
units
80mm 80mm 52mm Polystyrene 80 x 80 x 52mm IP65 - 8 Grey - - - - -
RS Stock No. 616-1381
Mfr. Part No.89540401
BrandSpelsberg
MYR110.88
1 Lot of 3
Lot(s)
93mm 93mm 55mm Polystyrene 93 x 93 x 55mm IP65 5 8 - - - - - -
RS Stock No. 499-5930
Mfr. Part No.KL1514510
BrandRittal
MYR153.62
Each
units
- 150mm 150mm Steel - IP66 - - - - - - - -
RS Stock No. 455-750
Mfr. Part No.12818
BrandABB
MYR297.91
Each
units
- - - - - IP65 - - - - - - - -
RS Stock No. 730-363
Mfr. Part No.GB 122 - 730363
BrandBartec
MYR864.40
Each
units
122mm 120mm 90mm Glass Fibre Reinforced PET 122 x 120 x 90mm IP66 10 6 Black ATEX - 15A - -
RS Stock No. 454-955
Mfr. Part No.00846
BrandABB
MYR20.70
Each
units
100mm 100mm 50mm Thermoplastic 100 x 100x 50mm IP65 - - Grey - - - - -
RS Stock No. 229-0700
Mfr. Part No.16880200.8
BrandRose
MYR368.36
Each
units
121mm 121mm 75mm Glass Fibre Reinforced PET 121 x 121 x 75mm IP66 6 2 Black ATEX - - - -
RS Stock No. 266-3136
Mfr. Part No.38102400
BrandBopla
MYR123.61
Each
units
98mm 64mm 34mm Polyamide 98 x 94 x 34mm IP65 - 4 Grey Silver - - - - -
RS Stock No. 730-379
Mfr. Part No.GB 160 - 730379
BrandBartec
MYR880.68
Each
units
160mm 160mm 90mm Glass Fibre Reinforced PET 160 x 160 x 90mm IP66 15 6 Black ATEX - 15A - -
RS Stock No. 905-4396
Mfr. Part No.CEP121290PA
BrandCE-TEK
MYR474.19
Each
units
122mm 120mm 90mm Polyester 122 x 120 x 90mm IP66 10 4 Black ATEX M20 - - -
RS Stock No. 229-0693
Mfr. Part No.16880300.8
BrandRose
MYR460.72
Each
units
161mm 161mm 95mm Glass Fibre Reinforced PET 161 x 161 x 95mm IP66 12 - Black ATEX - - - -
RS Stock No. 455-716
Mfr. Part No.12814
BrandABB
MYR275.68
Each
units
- 275mm 370mm - - IP65 - - - - - - - -
RS Stock No. 229-0665
Mfr. Part No.06121209.8
BrandRose
MYR867.82
Each
units
122mm 120mm 90mm Glass Fibre Reinforced PET 122 x 120 x 90mm IP66 10 2 Black ATEX - - - -
RS Stock No. 151-612
Mfr. Part No.ENN05002
MYR18.90
Each (In a Pack of 5)
units
65mm 45mm 65mm ABS 88 x 88 x 45mm IP55 - 4 Grey - - - - -
RS Stock No. 730-385
Mfr. Part No.GB 255 - 730385
BrandBartec
MYR1,654.03
Each
units
255mm 250mm 120mm Glass Fibre Reinforced PET 255 x 250 x 120mm IP66 20 8 Black ATEX - 11.5A - -
RS Stock No. 906-0430
Mfr. Part No.TMC-6PG
MYR91.82
Each
units
70mm 50mm 24mm Plastic 70 x 50 x 24mm IP65 6 2 Grey - M3 15A - -
RS Stock No. 151-808
Mfr. Part No.ENN05010
MYR42.12
Each
units
150mm 80mm 175mm Polypropylene 150 x 80 x 175mm IP55 - 12 Grey - - - - -
RS Stock No. 704-8444
Mfr. Part No.0 303 26
BrandLegrand
MYR52.96
Each
units
110mm 110mm 50mm PVC 110 x 110 x 50mm IP40 - - White - - - - -
RS Stock No. 122-030
BrandRS PRO
MYR196.75
Each
units
300mm 200mm 120mm Steel 300 x 200 x 120mm IP66 - - Grey - - - - -
RS Stock No. 570-499
Mfr. Part No.49240601
BrandSpelsberg
MYR394.08
Each
units
110mm 110mm 67mm Polycarbonate 110 x 110 x 67mm IP68 11 9 Grey - - - - -