The price of a 3x4 cable junction box in the UK typically ranges from £5 to £20 per unit, depending on brand, material, and IP rating.

Pricing Overview

• Basic plastic junction boxes for indoor use generally cost around £5–£10 per unit, suitable for standard domestic wiring projects .
• Waterproof or IP-rated boxes designed for outdoor or heavy-duty installations can range from £12–£20 or more, depending on size and features .
• Pack options may offer slight discounts, especially when buying multiple units from suppliers like Amazon or Shop4 Electrical .

Where to Buy

• JT Atkinson: Offers 3- and 4-terminal junction boxes with free delivery on selected items .
• RS Components: Provides a wide range of high-quality terminal boxes with fast delivery .
• Shop4 Electrical: Stocks cable jointing kits and junction boxes suitable for professional installations, with next-day delivery over £100 ex VAT .
• Electrical2Go: Offers various sizes, IP ratings, and mounting options for domestic, commercial, and industrial wiring .
• Amazon UK: Features multiple brands and types, including waterproof and lever-connector compatible boxes .

Tips for Selection

• Check IP rating if the box will be exposed to moisture or outdoor conditions. IP65–IP68 is recommended for waterproof applications.
• Material: Plastic is common for indoor use, while polycarbonate or metal may be preferred for durability.
• Size and terminals: Ensure the box can accommodate the number and size of cables you plan to connect.
• Delivery and bulk options: Buying in packs can reduce cost per unit if multiple boxes are needed.

By comparing these suppliers, you can find a 3x4 cable junction box that fits your budget and installation requirements.