The 2P, 3P, and 4P 16A-125A Dual Power Automatic Transfer Switch (ATS) Auto Change Over Switches are devices used to facilitate the automatic transfer of power between two power sources. These switches are available in various configurations, including 2-pole (2P), 3-pole (3P), and 4-pole (4P), providing flexibility for different electrical setups. The ATS Auto Change Over Switches have a current rating ranging from 16A to 125A, indicating the maximum current they can handle. This makes them suitable for a wide range of applications, from residential to commercial and industrial settings. The dual power feature means that the switches can alternate between two power sources, typically a main electrical supply and a backup generator. This ensures uninterrupted power supply in the event of a power outage or failure of the main power source. The automatic transfer function of these switches is designed to monitor the status of both power sources. When a failure is detected in the main power source, the ATS automatically initiates the transfer of the electrical load to the backup power source. Once the main power is restored, the ATS switches back to the main power source. Overall, these ATS Auto Change Over Switches provide a reliable and seamless solution for managing power transfer between two sources and ensuring continuous power supply. The different configurations and current ratings allow for customization based on the specific electrical requirements of each application.