The width of distribution box brackets generally corresponds to the width of the distribution box, which ranges from approximately 105 mm to 323 mm depending on the series and model.

Typical Distribution Box Widths

• Plastic distribution boxes (HA, HK, LGD series): Widths range from 105 mm to 323 mm .
• MB-ABC series boxes: Widths are typically 172–174 mm for models MB-ABC500, MB-ABC700, and MB-ABC900 .
• Industrial or larger KVA boxes: Bracket widths are designed to accommodate the box width, which can vary significantly depending on the KVA rating and configuration .

Bracket Considerations

The bracket width is usually slightly smaller than the box width to allow for mounting clearance and secure attachment. For example:

• Brackets for residential or small commercial boxes (width ~172 mm) are designed to fit standard wall or panel mounting rails.
• Brackets for medium to large industrial boxes (widths exceeding 300 mm) are reinforced to support heavier enclosures and may include multiple mounting points .

Practical Advice

• Always check the manufacturer's technical drawings for exact bracket dimensions, as these can vary by model and series.
• Ensure that the bracket width allows for proper alignment with mounting surfaces and does not interfere with door operation or cable entry points.
• For modular or flush-mounted boxes, the bracket width is typically standardized to match the box width for easy installation . In summary, distribution box bracket widths are generally aligned with the box width, ranging from about 105 mm for small boxes to over 320 mm for larger models, with exact dimensions depending on the specific series and intended installation environment .