North Africa Power Distribution Box Size Specifications Table

Typical North African low-voltage distribution boxes are fabricated from 2 mm GI sheet steel, rated IP-55, with dimensions and features optimized for safe and reliable power distribution.Construction and MaterialsDistribution boxes are generally outdoor-rated, made from 2 mm galvanized iron (GI) sheet steel with reinforced channels for structural integrity. The roof is slightly slanted with a 50 mm overhang to prevent water ingress. Doors feature Godrej-type 3-position locking systems for security, with hinges concealed externally to maintain tamper resistance. Boxes include solid earthing points on both sides and are designed to meet IP-55 protection standards, ensuring dust and water resistance .DimensionsWhile dimensions can vary depending on manufacturer and capacity, typical tolerances allow ±10% over the specified dimensions. Load centers and distribution boxes are designed for optimized size, allowing easy installation and cable routing. Knockout diameters for cable entry range from 25 mm to 63 mm, with single and double inside/outside options for flexibility . Height, width, and depth are often customized based on the number of MCCBs and busbar arrangements.Electrical SpecificationsBusbars: Copper flat bars, commonly 25x4 mm, with adequate clearance from the box body to prevent short circuits .MCCBs: Boxes accommodate 1 main 4-pole MCCB and outgoing feeders with 2- or 3-pole MCCBs, conforming to IS: 13947 standards with magnetic trip release and manual reset .Neutral and Earth Terminals: Incoming cable lugs up to 95 mm² and outgoing terminals up to 25 mm²; earth terminals support 50 mm² incoming and outgoing connections .Rated Insulation Voltage: Typically Ui 690 V, with ambient temperature tolerance up to 50°C .FeaturesCable Management: Detachable gland plates and ample knockout features for easy cable routing and maintenance .Internal Lighting: Provision for lighting inside the cabinet for inspection and maintenance .Insulation Barriers: Metallic or heat-resistant barriers between MCCBs to prevent heat transfer during faults .Customization: Labels, pre-wired options, and high-bending cables for dynamic applications are available .Compliance and TestingDistribution boxes must be type-tested at CPRI or government-approved laboratories for IP protection, impulse, and short-circuit withstand. Only boxes with valid test certificates and compliance with IEC and IS standards are considered acceptable . These specifications ensure that North African power distribution boxes provide robust, safe, and efficient power distribution for residential, commercial, and industrial applications.