Dimensions of the distribution box width height thickness

Distribution boxes typically range in width from 105–323 mm, height from 75–140 mm, and thickness from 2 mm (metal) to variable plastic wall thicknesses.Plastic Distribution BoxesPlastic distribution boxes, commonly used in residential and commercial settings, are made of flame-resistant ABS plastic and comply with standards such as BS EN60439-3 . Typical dimensions for popular series include:HA, HK, LGD series: Width 105–323 mm, Height 75–140 mm, Length 100–415 mm .MB-ABC series: Width 172–174 mm, Height 95 mm, Length 200–328 mm .MB-AF, MB-AS, MB-LF series: Dimensions vary depending on the number of ways (outlets) supported, but generally follow similar width and height ranges .Plastic boxes are lightweight, easy to install, and suitable for indoor applications. Wall thickness is typically designed to provide insulation and flame resistance, though exact thickness varies by manufacturer.Metal Distribution BoxesMetal enclosures, often used for outdoor or industrial applications, are usually fabricated from 2 mm galvanized iron (GI) sheet steel . Key specifications include:Thickness: 2 mm for the body, reinforced with channels for structural stability .Height and Width: Vary according to the number of rows and bus bar arrangements, but generally designed to accommodate standard LTDB (Low Tension Distribution Box) components .Additional features: Slanted roof with 50 mm overhang, IP-55 protection rating, solid earthing points, and secure locking systems .SummaryPlastic boxes: Width 105–323 mm, Height 75–140 mm, wall thickness varies for insulation.Metal boxes: Width and height depend on configuration, thickness typically 2 mm GI sheet, reinforced for outdoor durability.Selection considerations: Choose based on installation environment, number of circuits, protection rating, and material.These dimensions ensure proper fit for modular equipment, safe electrical distribution, and compliance with relevant standards for both indoor and outdoor applications .