Best Junction Boxes Deals Online in the UK (25 Deals Found)

Last Updated - 16/08/2026 Sort By:

Best Choice
WAGO

New
WAGO WAGOBOX® Pro 4, 207-3323, Maintenance free Junction Box, Enclosure Suitable for all WAGO 4mm² 221 Lever Connectors
COMPATIBILITY: Designed specifically for WAGO 221-412, 221-413, 221-415, 221-2411, 2773-402, 2773-403, 2773-404, & 2773-

£3.12
ArmaKit

New
IP66 External/Outdoor Waterproof Junction Box (86x86x50mm +Connectors)
8x M20 Entries | Fitted with flexible waterproof membrane... Just push your cable through! Each entry is also threaded t

£8.95
New
WATERPROOF JUNCTION BOX IP66 IP68 CASE ELECTRICAL CABLE WIRE CONNECTOR OUTDOOR
Waterproof IP66 / IP68 Cable Connector Junction Boxes For 240V UK Mains Power. 2 3 4 Ways Outdoor Waterproof IP66 / IP68

£59.95 £74.34
Generic

New
30A 3-Terminal Heavy Duty Junction Box Black
ASTA Approved for Reliability & Safety

£5.75
New
GEWISS GW442 ENCLOSURE JUNCTION BOX ADAPTABLE PVC PLASTIC WATERPROOF IP56 GREY
Gewiss GW442 waterproof IP56 junction box enclosure. High quality, sturdy, robust enclosures that can be used in the har

£7.00
saerryor

New
4 Pcs 3 Terminal Electrical Junction Box 13a Flex Connector 3 Core(White)
Fit 13AMP 250V cables: You will get 4 white 3 terminal electric junction box, suitable for 13AMP 250V cables, great for

£6.39
Best Value
ArmaKit

New
IP66 External/Outdoor Waterproof Junction Box (86x86x50mm)
8x M20 Entries | Fitted with flexible waterproof membrane... Just push your cable through! Each entry is also threaded t

£7.25 £9.50
New
Waterproof Junction Box ABS Plastic Electric Project Black Enclosure Housing
Protect your electrical components, wiring and DIY projects with thisWaterproof Junction Box made from durableABS plasti

£30.65
PRO ELEC

New
Pro Elec PELB1552 Junction Box, 20A 4 Terminal
Current Rating: 20A

£3.99
New
Junction Box Waterproof Outdoor Enclosure IP56 Plastic 100-460mm - All Sizes
Weatherproof Junction Box / Adaptable Electrical Enclosure – IP56 Rated – Multiple Sizes Available. These high-quality I

£89.95
WUBAYI

New
4 Pcs 3 Terminal Electrical Junction Box, 13amp 250v Flex Connector 3 Core Cable Joiner Electrical Connectors for Indoor
PC engineering plastic housing surface material: The terminal junction box made by engineering plastic housing surface m

£7.99
SHUESS

New
SHUESS 6 Pcs IP55 Junction Box - ABS Plastic Weatherproof Electrical Box - Waterproof Electrical Junction Box for Indoor
【 6 Waterproof Junction Box 】 The outer size of our outdoor junction box waterproof measures 85 x 85 x 50 mm / 3.35 x 3.

£14.99
New
ENCLOSURE JUNCTION BOX ADAPTABLE ABS PLASTIC WATERPROOF IP65 GREY CCTV ELECTRIC
Discover our durable IP55/IP65 junction box crafted from high-quality ABS plastic, ideal for CCTV, outdoor lighting, and

£139.95 £174.94
HAOCHEN

New
4 Pcs IP66 Waterproof Junction Boxes, 2-Way Outdoor Electrical Connectors, Black Extension Connectors with PG9 Glands fo
【Premium Material】Our waterproof junction box is made of high-quality plastic PC housing and silicone rings, which will

£11.99
New
Weatherproof Junction Box Case IP65 Waterproof Black for Outdoor Electric CCTV
The smaller size is IP55, the 10x10cm is IP65. The SECURICAM IP55 Waterproof junction box can be used for to hide electr

£134.95 £167.34
TLGREEN

New
10-Pack Waterproof Junction Boxes, 3-Way Electrical Connector Box for Outdoor/Garden/Landscape Lighting, Black PC Materi
IP66 Waterproof & Durable Design: These junction boxes feature IP66-rated waterproof and dustproof protection, with high

£19.99
New
WATERPROOF JUNCTION BOX ENCLOSURE ABS PLASTIC IP65 GREY CCTV ELECTRIC CABLING
JUNCTION BOX ENCLOSURE ABS PLASTIC WATERPROOF IP65 GREY CCTV ELECTRIC CABLING. IP55\IP65, Waterproof, Weatherproof -. al

£23.89 £29.62
New
ESR ENCLOSURE JUNCTION BOX ADAPTABLE PVC PLASTIC IP56 WATERPROOF GREY
Good, sturdy, robust enclosure which can be used in the harshest of conditions. We will always help you to have a 100% p

£74.40
New
IP65 WATERPROOF JUNCTION BOX OUTDOOR PVC ADAPTABLE ENCLOSURE INDOOR ALL SIZES
IP55\IP65 OUTDOOR WATERPROOF JUNCTION BOX ENCLOSURE. Robust & Durable Material: Constructed from high-grade Acrylonitril

£23.89 £29.62
New
JUNCTION BOX CASE IP66 IP68 ELECTRICAL CABLE WIRE CONNECTOR OUTDOORWATERPROOF
Waterproof IP66 / IP68 Cable Connector Junction Boxes. 2 3 4 Ways Outdoor Waterproof IP66 / IP68Junction Box Cable Conne

£59.95 £74.34
New
WEATHERPROOF JUNCTION BOX ADAPTABLE PLASTIC ELECTRICAL CABLE CONNECTOR OUTDOOR
Discover our weatherproof junction box, suitable for outdoor electrical installations. Rated IP55 for durability against

£89.95 £112.44
New
WATERPROOF JUNCTION BOX IP66 CASE ELECTRICAL CABLE WIRE CONNECTOR OUTDOOR
1PC x Waterproof Junction Box. It has good waterproof function. Type:2 Way. i0.5f08QNnVQNnV09" style="box-sizing: border

£2.59
New
IP65 Waterproof PVC Junction Box Adaptable Electrical Enclosure Indoor Outdoor
Discover the versatile IP65 Waterproof Outdoor Junction Box, designed for safe and durable electrical connections in var

£24.95 £31.19
New
IP67 Waterproof Electrical Junction Box Outdoor Plastic Enclosure With Hasp Seal
Protect your electrical connections with this durable IP66 waterproof electrical junction box. Manufactured from robust

£54.99
New
Complete Pack Junction Box+ CT Clamp
Complete Pack Junction Box+ CT Clamp Ohme home pro and ohme Epod CT (current transformer) for load management and or sol

£10.80

25 Junction Boxes deals are available from: Amazon, eBay stores, starting from £2.59.
The biggest discount we found is 24% on IP66 External/Outdoor Waterproof Junction Box (86x86x50mm) at Amazon.
The lowest price we found is £2.59 while the highest is £139.95.
Prices for the best Junction Boxes deals average at £36.73.
Last updated on August 16, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Junction Boxes.