The Master HP and Master HE series represent the optimum Riello UPS solution for installations requiring high efficiency, a low impact on the mains and maximum power availability.

Their ON LINE technology (classified as VFI-SS-111) combined with the transformer-based design and IGBT rectifier provide not only maximum

protection and power quality to the most critical applications such as data centers or industrial loads, but also minimises the impact on the mains supply and reduces the risk of oversizing generator sets.