An Uninterruptible Power Supply (UPS) is an electrical

device that provides backup power to a load when the

primary power source fails. Unlike auxiliary or standby

power systems, a UPS offers near-instantaneous protection

against power interruptions by utilizing energy stored in

batteries, supercapacitors, or flywheels.

UPS systems are commonly used to safeguard IT

infrastructure, including computers, data centers,

telecommunications equipment, and other critical devices,

where power failures could lead to significant service

disruptions or data loss.