AS-Interface power supplies are a category of industrial power supplies designed for the AS-Interface (Actuator-Sensor Interface) network, a widely used automation bus system. These power supplies are typically produced by various manufacturers, including prominent industrial automation companies like Siemens (Germany), Bihl+Wiedemann (Germany), and Pepperl+Fuchs (Germany). They serve industries such as manufacturing, process automation, and logistics, providing reliable power distribution for sensors and actuators in harsh environments. Key products include ASi power supply units with integrated data decoupling, safety monitors, and compact modular designs for easy integration into control systems.