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. 499-5974
Mfr. Part No.KL1503510
BrandRittal
MYR191.99
Each
units
- 300mm 200mm Steel - IP66 - - Grey - - - - -
RS Stock No. 535-1432
Mfr. Part No.OTB122
BrandBartec
MYR602.82
Each
units
122mm 122mm 82mm Glass Fibre Reinforced PET 122 x122 x 82mm IP66 - - Black ATEX - - - -
RS Stock No. 454-959
Mfr. Part No.00850
BrandABB
MYR25.86
Each
units
105mm 70mm 50mm Thermoplastic 105 x 70 x 50mm IP65 - - Grey - - - - -
RS Stock No. 455-075
Mfr. Part No.1SL0858A00
BrandABB
MYR188.41
Each
units
310mm 240mm 110mm Thermoplastic 310 x 240 x 110mm IP65 - - Grey - - - - -
RS Stock No. 229-0766
Mfr. Part No.15122208.8
BrandRose
MYR758.92
Each
units
220mm 120mm 80mm Aluminium 220 x 120 x 80mm IP66 20 2 Grey ATEX - - - -
RS Stock No. 263-0338
Mfr. Part No.12540301
BrandSpelsberg
MYR90.45
Each
units
94mm 94mm 57mm Polycarbonate 94 x 94 x 57mm IP66 - 7 Grey - - - - -
RS Stock No. 705-1709
Mfr. Part No.K56506GRY
MYR113.73
Each
units
95mm 95mm 65mm - 95 x 95 x 65mm IP66 4 4 Grey - M20 Knock out 30A - -
RS Stock No. 455-712
Mfr. Part No.12808
BrandABB
MYR119.43
Each
units
140mm 205mm 220mm - - IP65 - - - - - - - -
RS Stock No. 455-047
Mfr. Part No.1SL0880A0O
BrandABB
MYR97.85
Each
units
160mm 135mm 150mm Thermoplastic 160 x 135 x 150mm IP65 - - Grey - - - - -
RS Stock No. 535-1426
Mfr. Part No.GB80
BrandBartec
MYR470.87
Each
units
80mm 75mm 55mm Glass Fibre Reinforced PET 80 x 75 x 55mm IP66 5 + E 1 Black ATEX - 21A - -
RS Stock No. 906-0424
Mfr. Part No.TMC-3PG
MYR63.64
Each
units
65mm 33mm 24mm Plastic 65 x 33 x 24mm IP65 3 2 Grey - M3 15A - -
RS Stock No. 906-0436
Mfr. Part No.TMC-4PG
MYR74.82
Each
units
60mm 40mm 24mm Plastic 60 x 40 x 24mm IP65 4 2 Grey - M3 15A - -
RS Stock No. 905-4393
Mfr. Part No.CEP807555PA
BrandCE-TEK
MYR469.39
Each
units
80mm 75mm 55mm Polyester 80 x 75 x 55mm IP66 5 2 Black ATEX M20 - - -
RS Stock No. 151-713
Mfr. Part No.ENN05004
MYR30.366
Each (In a Pack of 5)
units
80mm 45mm 80mm ABS 80 x 45 x 80mm IP55 - 7 Grey - - - - -
RS Stock No. 454-949
Mfr. Part No.00851
BrandABB
MYR23.58
Each
units
100mm 100mm 80mm Thermoplastic 100 x 100 x 80mm IP65 - - Grey - - - - -
RS Stock No. 700-0814
Mfr. Part No.60703
BrandWISKA
MYR133.38
Each (In a Pack of 2)
units
140mm 140mm 82mm Polypropylene 140 x 140 x 82mm IP66, IP67 - 14 Grey - - - - -
RS Stock No. 749-1872
BrandRS PRO
MYR2,070.30
Each
units
300mm 120mm 300mm Stainless Steel 300 x 120 x 300mm IP66 - - Unpainted - - - - -
RS Stock No. 304-6728
Mfr. Part No.0 921 22
BrandLegrand
MYR351.68
Each
units
220mm 170mm 240mm Plastic 220 x 170 x 240mm IP55 - - Grey - - - - -
RS Stock No. 229-0687
Mfr. Part No.15081806.8
BrandRose
MYR470.50
Each
units
175mm 80mm 57mm Aluminium 175 x 80 x 57mm IP66 10 2 Grey ATEX - - - -
RS Stock No. 504-4550
Mfr. Part No.235471
BrandBartec
MYR682.65
Each
units
122mm 120mm 90mm Glass Fibre Reinforced PET 122 x 120 x 90mm IP66 9 - - ATEX - 21A - -