Wirable plugs for energy supply for field modules are a category of industrial electrical connectors rather than a specific brand. These plugs are commonly used in sectors like automation, manufacturing, and energy distribution, enabling secure and efficient power connections for modular field devices. Leading manufacturers in this space include companies such as Harting (Germany), Phoenix Contact (Germany), and TE Connectivity (Switzerland/USA). These brands offer robust, standardized plugs designed for harsh environments, ensuring reliable energy transmission in industrial applications. Products typically include modular connectors, cable assemblies, and interface solutions compliant with international standards like IEC 61076. These components are widely sourced through industrial suppliers like Radwell and Grainger.