What does ATO stand for?

The term ATO stands for "Automatic Throw-Over Switch." This device is commonly used in electrical systems to automatically switch the power supply from one source to another in the event of a failure or outage of the primary source. The key function of an ATO is to ensure continuous power supply, enhancing reliability and safety in electrical distribution.

An Automatic Throw-Over Switch typically combines elements of both monitoring and control, allowing it to detect when the primary source is no longer operational and to transfer the load to a backup source seamlessly. This capability is particularly important in critical infrastructure, such as hospitals or data centers, where uninterrupted power is essential.

This term is distinct from the other options presented, which refer to different concepts within electrical systems. Understanding the specific function of the Automatic Throw-Over Switch helps clarify its role in enhancing system resilience and operational efficiency in power management.