Uninterruptible Power Supplies and Accessories - Page 3
An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is a continual power system. When a power source or main power fails, the UPS provides emergency power to the load. A UPS provides immediate protection from input power interruptions, by supplying energy stored in batteries, super capacitors, or flywheels. A UPS is typically used to protect hardware such as computers, data centers, telecommunication equipment or other electrical equipment where an unexpected power disruption could cause injuries, fatalities, serious business disruption or data loss. UPS units range in size from units designed to protect a single computer without a video monitor (around 200 volt-ampere rating) to large units powering entire data centers or buildings. Shop Graybar's wide selection of UPS.