HOME / Standard for wall-mounted lighting distribution boxes

Article Overview

Wall-mounted lighting distribution boxes are designed for safe power distribution, available in surface or flush mounting, with varying module capacities, IP protection ratings, and internal components for residential, commercial, and industrial applications.

Mounting Types

Wall-mounted distribution boxes can be installed in two main ways:

  • Flush-mounted: Fixed inside the wall, providing a clean, integrated appearance.
  • Surface-mounted: Hung on the wall surface, easier to access and suitable for retrofits or industrial environments .

Materials and Construction

  • Plastic (ABS or PC): Common for residential and light commercial use, halogen-free, UV-protected, and available in grey (RAL 7035) with transparent windows for visibility .
  • ASA (Acrylic Styrene Acrylonitrile): Used in higher-rated boxes for durability and weather resistance .
  • Polycarbonate shields: Protect neutral and phase terminal blocks inside the box .

Module Capacity and Internal Components

  • Module capacities range from 4 to 54 modules, depending on the box size and application .
  • Typical internal components include:
    • Busbars (neutral and earth copper bars)
    • Guide rails for mounting MCBs, RCCBs, or RCDs
    • Terminal blocks for phase and neutral connections
    • Cover, frame, and base box for structural integrity .
  • Some boxes allow easy removal or replacement of MCBs without disturbing other components .

Protection Ratings

  • IP44: Protection against solid objects >1 mm and water splashes, suitable for indoor use .
  • IP65: Dust-tight and protected against water jets, suitable for outdoor or harsh environments .
  • Transparent windows often include UV protection for outdoor applications .

Compliance and Standards

  • Designed according to IEC 61439 and low tension directive 2014/35/EU for safety and reliability .
  • Modular systems allow integration with ABB, Wieland, or other DIN rail components, supporting flexible configurations for residential, commercial, or industrial installations .

Additional Features

  • Generous wiring space for easy installation and maintenance.
  • Pluggable or decentralized installation options for smart building applications .
  • Some boxes include transparent windows for monitoring without opening the cover .
  • Options for factory-fitted incoming devices or customizable kits for installer flexibility . Wall-mounted lighting distribution boxes provide a versatile, safe, and modular solution for electrical distribution, with specifications tailored to the environment, load requirements, and installation preferences.

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Standard for wall-mounted lighting distribution boxes
Standard for wall-mounted lighting distribution boxes [PDF]

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