BG Electrical 491W 20A 4-Terminal Knockout Junction Box White

Extend or repair power and lighting circuits safely with the BG Electrical 491W Junction Box. Rated at 20A, this compact 57mm white box has robust 4-terminal connectors for easy wiring and ring circuits. Features easy-knockout side entries and a captive cover screw for neat, compliant installations in homes and businesses. Slim 57mm profile, ideal for tight ceiling voids, under floorboards, or surface-mounted in cupboards. 4-terminal slot configuration with large grub screws for easy and secure conductor connection. Unbroken Ring Wire Support with slotted terminals enables continuous loop-in/loop-out wiring without cutting ring conductors. Knockout Entry Slots have four side-wall knockouts for easy cable access and tidy wiring. Captive Cover Screw secures fixing screws to the lid, preventing loss during overhead or underfloor installation. Fully compliant with BS EN 60670, ensuring electrical safety and durability.