The Eaton 9355 UPS is a compact three-phase, double-conversion online UPS that offers comprehensive power protection. Unlike comparable UPSs, the 9355 UPS has a significantly smaller footprint, yet comes equipped with internal batteries, an integrated power distribution module, and a maintenance bypass switch. It is possible to add redundancy or capacity by paralleling up to four UPSs, without the need for large external battery cabinets, thanks to Eaton's innovative HotSync paralleling technology.