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. 768-5756
Mfr. Part No.KD5355
BrandHENSEL
$257.15
Each
units
260mm 210mm 117mm - - 260 x 210 x 117mm Thermoplastic 12 IP66/67 5 Black 150A - -
RS Stock No. 455-053
Mfr. Part No.00800
BrandABB
$2.58
Each
units
- - 35mm 60mm 60 x 35mm - Thermoplastic - IP44 - Grey - - -
RS Stock No. 884-2297
Mfr. Part No.KF5000G
BrandHENSEL
$105.35
Each
units
355mm 255mm 122mm - - 355 x 255 x 122mm Polycarbonate 12 IP66/67 - Grey - Knock Out -
RS Stock No. 884-2313
Mfr. Part No.KF1000B
BrandHENSEL
$47.29
Each
units
180mm 130mm 77mm - - 180 x 130 x 77mm Polycarbonate 12 IP66/67 - Black - Knock Out -
RS Stock No. 776-7646
BrandRS PRO
$1.556
Each (In a Pack of 5)
units
- - - 62mm - - - 4 IP2X 4 Black 5A Selective entry -
RS Stock No. 884-2304
Mfr. Part No.KF0600B
BrandHENSEL
$35.46
Each
units
130mm 130mm 77mm - - 130 x 130 x 77mm Polycarbonate 8 IP66/67 - Black - Knock Out -
RS Stock No. 229-0693
Mfr. Part No.16880300.8
BrandRose
$103.33
Each
units
161mm 161mm 95mm - - 161 x 161 x 95mm Glass Fibre Reinforced PET - IP66 12 - - - ATEX
RS Stock No. 768-5759
Mfr. Part No.KD5105
BrandHENSEL
$90.55
Each
units
125mm 167mm 82mm - - 125 x 167 x 82mm Thermoplastic 10 IP66/67 5 Black 63A - -
RS Stock No. 151-741
Mfr. Part No.ENN05007
$13.255
Each (In a Pack of 2)
units
105mm 80mm 150mm - - 105 x 80 x 150mm Polypropylene 10 IP55 - Grey - - -
RS Stock No. 730-385
Mfr. Part No.GB 255 - 730385
BrandBartec
$544.79
Each
units
255mm 250mm 120mm - - 255 x 250 x 120mm Glass Fibre Reinforced PET 8 IP66 20 Black 11.5A - ATEX
RS Stock No. 151-779
Mfr. Part No.ENN05019
$55.27
Each
units
275mm 120mm 325mm - - 275 x 120 x 325mm Polypropylene 20 IP55 - Grey - - -
RS Stock No. 535-1426
Mfr. Part No.GB80
BrandBartec
$139.67
Each
units
80mm 75mm 55mm - - 80 x 75 x 55mm Glass Fibre Reinforced PET 1 IP66 5 + E Black 21A - ATEX
RS Stock No. 842-8500
BrandRS PRO
$95.63
Each
units
300mm 300mm 120mm - - 300 x 300 x 120mm Steel - IP65 - Grey - - -
RS Stock No. 229-0700
Mfr. Part No.16880200.8
BrandRose
$177.09
Each
units
121mm 121mm 75mm - - 121 x 121 x 75mm Glass Fibre Reinforced PET 2 IP66 6 - - - ATEX
RS Stock No. 768-5796
Mfr. Part No.KD4060
BrandHENSEL
$89.48
Each
units
119mm 139mm 70mm - - 119 x 139 x 70mm Thermoplastic - IP66/67 - Black 32 A, 40 A - -
RS Stock No. 616-1347
Mfr. Part No.89590201
BrandSpelsberg
$15.48
1 Lot of 3
Lot(s)
80mm 80mm 52mm - - 80 x 80 x 52mm Polystyrene 8 IP65 - - - - -
RS Stock No. 768-5774
Mfr. Part No.KD5100
BrandHENSEL
$72.59
Each
units
125mm 167mm 82mm - - 125 x 167 x 82mm Thermoplastic 10 IP66/67 - Black 63A - -
RS Stock No. 263-0259
Mfr. Part No.40290701
BrandSpelsberg
$6.542
Each (In a Pack of 5)
units
80mm 80mm 38mm - - 80 x 80 x 38mm - 7 IP54 - - - - -
RS Stock No. 616-1410
Mfr. Part No.89541001
BrandSpelsberg
$44.63
1 Lot of 2
Lot(s)
140mm 140mm 79mm - - 140 x 140 x 79mm - 12 IP65 5 - - - -
RS Stock No. 749-1882
BrandRS PRO
$209.58
Each
units
400mm 120mm 200mm - - 400 x 120 x 200mm Mild Steel - IP66 - Grey - - -
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