Shop standby uninterruptible power supplies designed to provide battery-backed power when the normal electrical source is interrupted or moves outside the UPS operating range. Standby UPS systems are commonly used with computers, network equipment, communications devices and other electronic loads requiring basic outage protection.
Compare standby UPS systems by input voltage, VA and watt capacity, battery runtime, outlet configuration, surge protection, mounting style and communication features. Verify the connected equipment load and required shutdown or backup time before selecting a system.
A standby UPS normally supplies connected equipment from utility power. If the incoming source fails or moves outside the acceptable operating range, the UPS transfers the load to battery-backed inverter power.
Standby systems are often appropriate where the primary requirement is short-duration battery backup for equipment that can tolerate a brief transfer between utility and battery power. More sensitive applications may require line-interactive or online UPS topology.
Standby UPS systems primarily provide battery backup when utility power becomes unacceptable. Line-interactive systems generally add automatic voltage regulation so selected voltage variations can be corrected without using the battery. Applications with frequent voltage fluctuations may benefit from the additional regulation provided by a line-interactive design.