Uninterruptible Power Supply: Encompasses systems preventing power disruptions to critical equipment. Systems providing reliable backup power during outages and ensuring critical operations continue.

An Uninterruptible Power Supply (UPS) is an electrical apparatus that provides emergency power to a load when the input power source fails. A UPS system differs from a traditional backup generator in that it provides near-instantaneous protection from power interruptions.

This is crucial for sensitive equipment where even a brief power loss can lead to data corruption or hardware damage. The core function of an Uninterruptible Power Supply is to provide short-term power until a more permanent solution, like a backup generator, can take over or until the main power is restored.