Tripp Lite Hot-Swap PDUs are designed to make any UPS system below 3 kVA completely hot-swappable. It is connected in line between the UPS system and supported equipment loads. It features an external manual bypass switch. When the switch is set to "bypass," the entire UPS system can be removed for maintenance while the Hot-Swap PDU remains installed, continuing to power connected equipment as long as utility power is present. NOTE: Most Tripp Lite UPS Systems 5 kVA and above already include built-in Hot-Swap PDUs as a standard feature.