An Automatic Change Over Switch (ATS) automatically switches the power supply between a primary source, such as the main grid, and a secondary source, like a backup generator, during power outages or failures. Ideal for industrial, commercial, and residential applications, ATS ensures seamless and uninterrupted power transfer without manual intervention. It monitors the power supply and instantly switches to the backup source when a fault is detected. ATS is widely used in emergency power systems, data centers, hospitals, and critical infrastructure, providing reliable load management, safety, and enhanced system efficiency.