24 V DC power supplies are a category of industrial power solutions offered by various global manufacturers, not a single brand. Companies like Siemens (Germany), Phoenix Contact (Germany), Mean Well (Taiwan), and Delta Electronics (Taiwan) produce these devices. These power supplies convert AC to stable 24 V DC output, serving industries such as automation, manufacturing, and telecommunications. Key products include DIN-rail mounted units, modular power supplies, and enclosed models, designed for reliability in harsh environments. Brands like PULS (Germany) specialize in high-efficiency 24 V DC systems for industrial control panels.