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 Diameter Dimensions Dia. x H Dimensions L x W x H Material Number of Ways IP Rating Number of Terminals Colour Current Rating Cable Entry Hazardous Area Certification
RS Stock No. 266-3091
Mfr. Part No.38101100
BrandBopla
$60.51
Each
units
58mm 64mm 34mm - - 58 x 64 x 34mm Polyamide 1 IP65 - Grey Silver - - -
RS Stock No. 749-1894
BrandRS PRO
$98.02
Each
units
300mm 120mm 150mm - - 300 x 120 x 150mm Mild Steel - IP66 - Grey - - -
RS Stock No. 499-5996
Mfr. Part No.KL1508510
BrandRittal
$137.89
Each
units
- 400mm 300mm - - - - - IP66 - - - - -
RS Stock No. 398-2494
Mfr. Part No.0 920 20
BrandLegrand
$20.20
Each
units
105mm 105mm 55mm - - 105 x 105 x 55mm ABS - IP55 - Grey - - -
RS Stock No. 884-2307
Mfr. Part No.KF0200B
BrandHENSEL
$10.51
Each
units
93mm 93mm 62mm - - 93 x 93 x 62mm Polycarbonate 7 IP66/67 - Black - Knock Out -
RS Stock No. 842-8497
BrandRS PRO
$55.83
Each
units
200mm 200mm 120mm - - 200 x 200 x 120mm Steel - IP65 - Grey - - -
RS Stock No. 504-4550
Mfr. Part No.235471
BrandBartec
$200.39
Each
units
122mm 120mm 90mm - - 122 x 120 x 90mm Glass Fibre Reinforced PET - IP66 9 - 21A - ATEX
RS Stock No. 365-9273
Mfr. Part No.81091001
BrandSpelsberg
$25.965
Each (In a Pack of 2)
units
140mm 140mm 79mm - - 140 x 140 x 79mm Polystyrene 12 IP65 - Grey - - -
RS Stock No. 454-971
Mfr. Part No.00872
BrandABB
$16.72
Each
units
153 110mm 66mm - - 153 x 110 x 66 Thermoplastic - IP55 - Grey - - -
RS Stock No. 749-1866
BrandRS PRO
$262.51
Each
units
200mm 80mm 200mm - - 200 x 80 x 200mm Stainless Steel - IP66 - Unpainted - - -
RS Stock No. 771-9559
Mfr. Part No.1210/5/B
BrandWISKA
$30.06
Each
units
160mm 140mm 81mm - - 160 x 140 x 81mm Polypropylene 10 IP66, IP67 - Black 57A - -
RS Stock No. 499-5974
Mfr. Part No.KL1503510
BrandRittal
$105.38
Each
units
- 300mm 200mm - - - Steel - IP66 - Grey - - -
RS Stock No. 266-3120
Mfr. Part No.38102200
BrandBopla
$57.82
Each
units
98mm 64mm 34mm - - 98 x 64 x 34mm Polyamide 2 IP65 - Grey Silver - - -
RS Stock No. 263-0338
Mfr. Part No.12540301
BrandSpelsberg
$45.84
Each
units
94mm 94mm 57mm - - 94 x 94 x 57mm Polycarbonate 7 IP66 - Grey - - -
RS Stock No. 499-6488
Mfr. Part No.1516510
BrandRittal
$126.84
Each
units
- 200mm 200mm - - - - - IP66 - - - - -
RS Stock No. 455-750
Mfr. Part No.12818
BrandABB
$150.39
Each
units
- - - - - - - - IP65 - - - - -
RS Stock No. 842-8333
BrandRS PRO
$258.02
Each
units
300mm 300mm 120mm - - 300 x 300 x 120mm Stainless Steel - IP66 - Unpainted - - -
RS Stock No. 266-3108
Mfr. Part No.38101200
BrandBopla
$51.68
Each
units
58mm 64mm 34mm - - 58 x 64 x 34mm Polyamide 2 IP65 - Grey Silver - - -
RS Stock No. 905-4393
Mfr. Part No.CEP807555PA
BrandCE-TEK
$124.82
Each
units
80mm 75mm 55mm - - 80 x 75 x 55mm Polyester 2 IP66 5 Black - M20 ATEX
RS Stock No. 263-0388
Mfr. Part No.12540801
BrandSpelsberg
$125.07
Each
units
254mm 180mm 90mm - - 254 x 180 x 90mm Polycarbonate 32 IP66 - Grey - - -
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