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. 454-943
Mfr. Part No.00852 M008520000
BrandABB
€5.46
Each
units
153mm 110mm 66mm Thermoplastic 153 x 110 x 66mm IP65 - - Grey - - - - -
RS Stock No. 454-949
Mfr. Part No.00851 M008510000
BrandABB
€4.60
Each
units
100mm 100mm 80mm Thermoplastic 100 x 100 x 80mm IP65 - - Grey - - - - -
RS Stock No. 455-071
Mfr. Part No.1SL0856A00 1SL0856A00
BrandABB
€14.66
Each
units
220mm 170mm 80mm Thermoplastic 200 x 170 x 80mm IP65 - - Grey - - - - -
RS Stock No. 700-0802
Mfr. Part No.COMBI 308/5
BrandWISKA
€36.36
1 Pack of 5
Pack(s)
85mm 85mm 51mm Polypropylene 85 x 85 x 51mm IP66 - 8 Grey - - - - -
RS Stock No. 454-955
Mfr. Part No.00846 M008460000
BrandABB
€3.90
Each
units
100mm 100mm 50mm Thermoplastic 100 x 100x 50mm IP65 - - Grey - - - - -
RS Stock No. 390-902
Mfr. Part No.89540601
BrandSpelsberg
€19.72
1 Pack of 2
Pack(s)
110mm 110mm 67mm Polystyrene 110 x 110 x 67mm IP65 5 9 - - - - - -
RS Stock No. 365-9239
Mfr. Part No.80390701
BrandSpelsberg
€13.02
1 Pack of 3
Pack(s)
80mm 80mm 52mm Polystyrene 80 x 80 x 52mm IP65 - 8 Grey - - - - -
RS Stock No. 771-9540
Mfr. Part No.1210/5/G
BrandWISKA
€21.30
Each
units
160mm 140mm 81mm Polypropylene 160 x 140 x 81mm IP66, IP67 - 10 Grey - - 57A - -
RS Stock No. 229-0687
Mfr. Part No.15081806.8
BrandRose
€49.60
Each
units
175mm 80mm 57mm Aluminium 175 x 80 x 57mm IP66 10 2 Grey ATEX - - - -
RS Stock No. 455-706
Mfr. Part No.12812 M128120020
BrandABB
€35.50
Each
units
- 275mm 220mm - - IP65 - - - - - - - -
RS Stock No. 535-1426
Mfr. Part No.GB80
BrandBartec
€89.77
Each
units
80mm 75mm 55mm Glass Fibre Reinforced PET 80 x 75 x 55mm IP66 5 + E 1 Black ATEX - 21A - -
RS Stock No. 730-363
Mfr. Part No.GB 122 - 730363
BrandBartec
€108.68
Each
units
122mm 120mm 90mm Glass Fibre Reinforced PET 122 x 120 x 90mm IP66 10 6 Black ATEX - 15A - -
RS Stock No. 122-068
BrandRS PRO
€53.07
Each
units
400mm 300mm 120mm Steel 400 x 300 x 120mm IP66 - - RAL 7032 - - - - -
RS Stock No. 151-763
Mfr. Part No.ENN05005
€17.72
1 Pack of 5
Pack(s)
- 105mm 105mm Polypropylene - IP55 - 7 Grey - - - - -
RS Stock No. 455-043
Mfr. Part No.1SL0874A00 1SL0874A00
BrandABB
€12.81
Each
units
160mm 135mm 77mm Thermoplastic 160 x 135 x 77mm IP65 - - Grey - - - - -
RS Stock No. 455-009
Mfr. Part No.1SL0876A00 1SL0876A00
BrandABB
€21.70
Each
units
220mm 170mm 80mm Thermoplastic 220 x 170 x 80mm IP65 - - Grey - - - - -
RS Stock No. 455-075
Mfr. Part No.1SL0858A00 1SL0858A00
BrandABB
€26.77
Each
units
310mm 240mm 110mm Thermoplastic 310 x 240 x 110mm IP65 - - Grey - - - - -
RS Stock No. 151-741
Mfr. Part No.ENN05007
€11.73
1 Pack of 2
Pack(s)
105mm 80mm 150mm Polypropylene 105 x 80 x 150mm IP55 - 10 Grey - - - - -
RS Stock No. 455-069
Mfr. Part No.1SL0860A00 1SL0860A00
BrandABB
€12.04
Each
units
160mm 135mm 150mm Thermoplastic 160 x 135 x 150mm IP65 - - Grey - - - - -
RS Stock No. 455-065
Mfr. Part No.1SL0854A00 1SL0854A00
BrandABB
€9.97
Each
units
160mm 135mm 77mm Thermoplastic 160 x 135 x 77mm IP65 - - Grey - - - - -