Double-Conversion Online UPS – Voltage and Frequency Independent (VFI)

Online UPS, also known as Voltage and Frequency Independent (VFI), offer the premium power protection demanded by your mission-critical and sensitive equipment.

Riello UPS’s online uninterruptible power supplies employ sophisticated double conversion technology which effectively isolates your critical load from virtually all types of power problems.

Our range of VFI UPS incorporates single-phase and three-phase models, towerrackmount or dual UPS. All are designed to deliver maximum reliability while minimising your energy consumption and environmental impact.

Our award-winning online UPS systems include popular products such as the NextEnergy, Multi Sentry, Sentinel Dual, and Multi Power, our award-winning modular uninterruptible power supply.