As a connection-ready thyristor switch with secure operational behavior and load monitoring, the Thyro-S (SCR) power controller switches electric loads, for example, current, voltage, or power. It can be connected to bus systems, used instand-alone operation, or used in combination with all established 2-point process controllers, PLCs, or computer systems. With simple mounting, quick commissioning, and easy operation, the Thyro-S series can be integrated easly into a wide range of applications.