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Junction Boxes Comparison - December 2025

7 Best Junction Boxes In the UK

1
Best Choice
9.9Exceptional
2
9.7Exceptional
3
9.6Exceptional
4
9.5Excellent
5
9.4Excellent
6
9.2Excellent
7
9.0Excellent
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Model

COOLWEST IP66 Junction Box Waterproof Outdoor 2 Cable PG9 Black Plastic Connector Gland Electrical
Model
IP66 External/Outdoor Waterproof Junction Box (86x86x50mm)
Model
IP68 Waterproof Junction Box Outdoor Cable Connector, Extension Electrical Cable Protector for Cable Diameter Ø5mm-8mm (Pack of 2)
Model
IP68 Waterproof Junction Box, 3-Way Outdoor Cable Connectors, Y-Type PA9 Electrical Junction Box, Gland External Cable Wire Connector for Ø 4mm -15mm Diameter Cable - Black
Model
2Pcs 3 Terminal Electrical Cable Junction Box 13Amp 250v Flex Connector 3 Core Cable Connectors For Indoor Lighting, Electrical Power, Wiring(White)
Model
ABB IP44 Junction Box • Waterproof Electric Cable Connector Unit • Cable Glands Included • Shockproof Adaptable Electric Box • Indoor/Outdoor Box • 80 x 80 x 40mm
Model
WAGO WAGOBOX Light Junction Box, Suitable for WAGO 221-2411, & 224 series, for Multicore Cables, max. 4 mm² Connectors, up to 24 Amp, 400 Volt, 207-3303, Grey, Pack of 1

Brand

COOLWEST
Brand
ArmaKit
Brand
Malajess
Brand
WELHAEPI
Brand
TRLREQ
Brand
ABB
Brand
WAGO

Reviews

27,912 reviews
Reviews
5,168 reviews
Reviews
13,632 reviews
Reviews
2,152 reviews
Reviews
1,532 reviews
Reviews
1,312 reviews
Reviews
344 reviews

Tech Specs

item weight

17 g
item weight
80 g
item weight
‎36 g
item weight
120 g
item weight
70 g
item weight
‎80 g
item weight
20 g

included components

Junction Box
included components
Box
included components
‎junction box
included components
NO
included components
Junction Box
included components
‎Box
included components
Included in delivery: 1 WAGOBOX Light Junction Box 207-3303 grey

material

High quality PC plastic
material
Glass Reinforced PP
material
‎Polycarbonate
material
Stainless Steel, Polycarbonate
material
Plastic
material
‎Thermoplastic
material
Plastic

installation method

Screw-In
installation method
Screw-In
installation method
‎Screw-In
installation method
Screw-In
installation method
Screw-In
installation method
‎To screw
installation method
Screw-In

finish

Steel
finish
Waterproof
finish
‎Powder Coated
finish
Stainless Steel
finish
Polished
finish
‎Painted
finish
Painted

batteries required

No
batteries required
No
batteries required
‎No
batteries required
No
batteries required
No
batteries required
‎No
batteries required
No

color

Black
color
Black
color
‎black
color
Black
color
White
color
‎Grey
color
Grey

style

2-way
style
Modern
style
‎2-Pack
style
Industrial
style
Wire Collated
style
‎80 x 80 x 40mm
style
-

product dimensions

1.6 x 1.18 x 4.53 cm 17.01 g
product dimensions
8.6 x 8.6 x 5 cm 80 g
product dimensions
-
product dimensions
3.7 x 7 x 11.6 cm 120 g
product dimensions
-
product dimensions
‎4 x 8 x 8 cm; 80 g
product dimensions
3.9 x 9.5 x 2.9 cm 20 g

specification met

IP66
specification met
IP66
specification met
‎ce, saa
specification met
IP68
specification met
-
specification met
‎IP44, IEC
specification met
-

batteries included

No
batteries included
No
batteries included
-
batteries included
-
batteries included
No
batteries included
‎No
batteries included
No

item package quantity

1
item package quantity
-
item package quantity
-
item package quantity
1
item package quantity
-
item package quantity
‎1
item package quantity
1

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.9
    1
    COOLWEST

    COOLWEST IP66 Junction Box Waterproof Outdoor 2 Cable PG9 Black Plastic Connector Gland Electrical

    Main highlights
    • 【Safety and Wide Usability】Terminal Block Voltage: 450V; Terminal Block Current: 15A, Material: Plastic; Color : Black. The waterproof electrical junction box is available for 2pin/3pin cables. Easy and fast to using ideal to repair and extend power cables. Suitable for electrical installations, outdoor cabling and cable repairs or extends.
    • 【PG9 Waterproof Junction Box Outdoor IP66】Outdoor 𝐈𝐏𝟔𝟔 𝐖𝐚𝐭𝐞𝐫𝐩𝐫𝐨𝐨𝐟 𝐉𝐮𝐧𝐜𝐭𝐢𝐨𝐧 𝐁𝐨𝐱 are suitable for indoor and outdoor use in any adverse weather conditions in the British. The waterproof junction box prevents exposure with good sealing performance, anti-UV sun protection, dust, wind and rain.
    • 【Outdoor Junction Box Waterproof】The 𝐖𝐚𝐭𝐞𝐫𝐩𝐫𝐨𝐨𝐟 𝐉𝐮𝐧𝐜𝐭𝐢𝐨𝐧 𝐁𝐨𝐱 cable connector PG9 is safe for home, garden or construction plant
    • 【Black Plastic 𝐖𝐚𝐭𝐞𝐫𝐩𝐫𝐨𝐨𝐟 𝐉𝐮𝐧𝐜𝐭𝐢𝐨𝐧 𝐁𝐨𝐱】Waterproof junction box IP66 has available in 2 way, One in and one out and is delivered with a three-position terminal block. This waterproof coupler is ideal for harsh industrial or outdoor environments.
    • 【2pin/3pin Cables】The outdoor junction box is available for 2pin/3pin cables, Cable diameters: 4-8mm. The junction box waterproof can be installed outdoors and indoors, such as in a wall, garden, yard, path, patio, road, street, balcony, house, etc. The waterproof junction box outdoor is an ideal choice for electrical installation, outdoor wiring, cable repair, or extension.
  • 9.7
    2
    ArmaKit

    IP66 External/Outdoor Waterproof Junction Box (86x86x50mm)

    Main highlights
    • Supplied with mounting plate.
    • Quick-release locking screws make for quick and easy installation and inspection. 100% Corrosion Proof.
    • Premium quality UV Proof, Shatter Proof, and Fire Resistant construction means it's suitable for indoor and outdoor installation under driving rain and harsh sunlight.
    • External Dimensions: 86 x 86 x 50mm
    • 8x M20 Entries | Fitted with flexible waterproof membrane... Just push your cable through! Each entry is also threaded to accept an M20 cable gland.
  • 9.6
    3
    Malajess

    IP68 Waterproof Junction Box Outdoor Cable Connector, Extension Electrical Cable Protector for Cable Diameter Ø5mm-8mm (Pack of 2)

    Main highlights
    • 🟢 【Wide Application】The outdoor cable connector is designed for home, garden and farm, suitable for all kinds of outdoor lighting, outdoor waterproof equipment and all kinds of electrical equipment.
    • 🟢 【Specification】Terminal Block Voltage: 450V; Terminal Block Current: 17.5A; Material:PA66 + Nickel-Plated Brass
    • 🟢 【Professional Certification】Junction box connector have passed TUV, SAA, CE, ROHS, UL material certification, which is safer than other cable connectors.
    • 🟢 【IP68 Waterproof Design】Waterproof flame retardant PC material which is fireproof, anti-impact function, waterproof silicone seal, anti-UV sun protection and rain protection.
    • 🟢 【2pin/3pin Cables】Cable diameters 5-8mm, Easy and fast to using ideal to repair and extend power cables. Suitable for electrical installations, outdoor cabling and cable repairs or extends.

Our ranking system

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Features

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Consumer Reviews

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.