Profile: Wago Corporation houses engineering, design, manufacturing and a fully automated distribution center. Our multi connection system offers an ideal solution for any through wiring applications. The optocoupler is the connecting element between process interface and electronic control and signalling systems. The Wago electronicC program offer relays in various packages and different combinations. In modern automation systems, electromechanical relays guarantee a safe connection between the process control systems and the process and signalling systems.