Dimensions of Aluminum Alloy Distribution Boxes

Aluminum alloy distribution boxes typically range from 45 x 50 x 30 mm to 600 x 600 x 200 mm, with over 40 standard sizes available for industrial applications.Common Standard SizesAluminum distribution boxes, also known as terminal or junction boxes, are manufactured in a wide range of standard sizes to accommodate different electrical and electromechanical components. Typical dimensions include:Small Boxes: 45 x 50 x 30 mm to 100 x 100 x 50 mm, suitable for compact installations and light-duty applications .Medium Boxes: 120 x 120 x 60 mm to 300 x 200 x 100 mm, commonly used for standard industrial control panels and terminal installations .Large Boxes: 400 x 300 x 150 mm up to 600 x 600 x 200 mm, designed for heavy-duty or high-density component setups . Some manufacturers provide over 70 different sizes to meet specific requirements, including variations in cover height and wall thickness .Material and ProtectionMade from aluminum alloys such as 6061, 6063, or ENAC/GdAlSi12, offering corrosion resistance, high strength-to-weight ratio, and durability .Standard protection ratings include IP65, IP66, and IP68, ensuring resistance to dust, water, and harsh industrial environments .Wall thickness and mounting provisions are designed to support cable glands, DIN rails, and internal components without compromising ingress protection .Additional FeaturesScrewable covers with captive screws for secure closure.Optional EMC shielding or seawater-resistant coatings for specialized applications .Compatibility with standardized accessories such as mounting plates, hinges, and grounding screws . These standard sizes allow for quick selection, reduced lead times, and compatibility with off-the-shelf components, making them suitable for a wide range of industrial, automation, and electrical distribution applications .