A UPS delivers second-level protection against surges; it should never be considered a primary surge protection device. It also continually regulates incoming voltage and provides an internal battery that allows connected equipment to continue running even if the power supply is cut.

Will UPS protect computer from power surge?

UPS systems protects against most power problems including power surges, outages, and brown outs. UPS battery backups immediately cycle to battery power when the power from the outlet fails. This allows you to complete your work and shut down your electronics properly.

What does a UPS protect against?

A UPS (Uninterruptable Power Supply) protects against certain power problems. Mainly it protects against blackouts, brownouts, noise, spikes, and power surges. Each of these provides a different challenge to your computer systems, and, if left unrestricted, they could have a devastating effect.