The selection of raw materials for small power distribution units is crucial because it directly affects the safety, durability and performance of the small power distribution unit. Generally, common raw materials for small power distribution units include metal (such as steel, aluminum alloy), plastic (such as polycarbonate, polypropylene), etc. Steel products usually have high strength and durability, can provide good protective properties, and are suitable for outdoor or high-risk environments. Aluminum alloy products are relatively lightweight, have excellent corrosion resistance, and are suitable for use in humid or corrosive environments. In comparison, plastic materials are lightweight, insulating, and corrosion-resistant, but may not be as durable as metal materials. Therefore, when selecting raw materials for small power distribution units, you need to consider factors such as the use environment, safety requirements, budget, etc., and make an appropriate choice after a comprehensive evaluation to ensure the quality and reliability of the small power distribution unit.