Singapore Lighting Distribution Box Dimensions

Lighting distribution boxes in Singapore typically range from compact 4-way boxes (~250x200x100 mm) to larger industrial enclosures exceeding 600x400x200 mm, depending on application and current rating.

Residential and Small Commercial Boxes

Small distribution boxes, often used for residential lighting circuits, are usually 4-way or 6-way and have approximate dimensions of 250–300 mm in height, 200–250 mm in width, and 100–120 mm in depth. These boxes are commonly made from thermoplastic polystyrene or polycarbonate, offering IP65–IP67 protection against dust and water, and are suitable for indoor or sheltered outdoor installation . They often feature FIXCONNECT terminal technology for safe and efficient wiring .

Metal and Surface-Mounted Boxes

For more robust applications, metal distribution boxes (surface-mounted or metal-clad consumer units) are available in up to 13 different sizes, accommodating higher current ratings and multiple circuits . Typical dimensions for these boxes range from 300x250x120 mm for smaller units to 600x400x200 mm for larger units, depending on the number of ways and internal components.

Industrial and Outdoor Enclosures

Larger industrial or outdoor distribution boards, such as the ENYSTAR or ENYMOD Mi systems, are modular and customizable. They can handle up to 250A or 630A, with dimensions varying according to configuration. These enclosures are designed for harsh environments, with IP66 protection, UV resistance, and corrosion resistance, making them suitable for outdoor or industrial lighting distribution .

Key Considerations

• Material: Thermoplastic or metal, depending on environment and durability requirements.
• IP Rating: IP65–IP67 for dust and water protection.
• Mounting: Wall-mounted, surface-mounted, or modular assembly for larger boards.
• Current Rating: Small boxes up to 63A; industrial boards up to 630A. For precise dimensions, it is recommended to consult manufacturer datasheets or e-catalogues, such as those from Legrand Singapore or Asiatic Group, which provide detailed specifications for each model .