ATyS S products are 4-pole remotely operated transfer switches equipped with positive break indication for clear and reliable status confirmation. They enable on-load transfer between two three-phase power supplies through remote volt-free contacts, controlled either by an external automatic controller using pulse logic or via a switch-based command. Designed for low-voltage power supply systems, they are intended for applications where a brief interruption of the load supply is acceptable during transfer, ensuring dependable and controlled changeover performance.