An automatic transfer switch (ATS) is, simply put, a specialized electrical device designed for switching between dual power sources. Under normal operating conditions, it draws power from the primary source while simultaneously monitoring the circuit status in real time. Should the primary power supply fail—whether due to an outage, voltage instability, or other supply issues—the ATS automatically detects the fault without requiring manual intervention; it promptly disconnects the faulty source and seamlessly switches over to the backup power supply. Ensuring a continuous power supply to connected equipment in this manner, it minimizes the disruptive impact of power outages and is widely utilized to safeguard the continuous and stable operation of critical systems.
