There are three main UPS types and each is intended to keep a system protected from blackouts, brownouts and catastrophic events. 1. Standby A Standby or "Offline" UPS system's load is powered directly by the input power. When the voltage becomes too high or too low, the UPS automatically switches to battery backup mode. There [...]The post Digging Deeper: 3 Categories of Modern UPS Systems appeared first on Customized Uptime Solutions.