Lighting distribution boxes typically range in size depending on the number of outlets, with common wall-mounted boxes measuring from around 200×200×120 mm up to 800×600×300 mm.

Typical Sizes and Configurations

Lighting distribution boxes, also known as consumer control units or power distribution boxes, come in various sizes depending on their application and the number of outlets they support . For example:

• Small wall-mounted boxes: Often used for 2–4 outlets, dimensions can start around 200×200×120 mm.
• Medium boxes: Suitable for 6–8 outlets, dimensions typically range from 400×300×150 mm to 600×400×200 mm.
• Large or multi-outlet boxes: For 10–12 outlets or industrial applications, sizes can reach 800×600×300 mm or more .

The depth of the box is particularly important to accommodate wiring, conductor splicing, and compliance with wire-fill regulations . Depths usually range from 120 mm to 300 mm, depending on the number of conductors and internal components.

Mounting Types

Lighting distribution boxes can be installed in different ways:

• Flush-mounted: Fixed inside the wall for a clean, integrated look .
• Surface-mounted: Hung on the wall surface, often used in industrial or retrofit applications .

Additional Considerations

• Internal layout: Includes space for busbars, neutral and earth bars, and wiring compartments.
• Cable entry points: Multiple entry points allow flexible installation and easier compliance with wiring regulations .
• Material and protection: Boxes are typically made of plastic or metal, with protection levels varying according to the environment.
• Outlet count: Boxes are available with 2, 4, 6, 8, 10, or 12 outlets, which directly affects the overall dimensions .

When selecting a lighting distribution box, always verify the manufacturer's technical drawings to ensure the chosen size fits the installation space and meets electrical code requirements .