Single phase and three phase UPS from 400 VA to 6.4 MVA, for applications ranging from home offices to large industrial plants to data centers. Total Online Protection offers Riello UPS USA products to custom upgrade your data centers.

riello ups sentinel rt

Sentinel RT

Power Range: 1000 – 10000 VA

The SENTINEL RT is the high density version of the Premium Pro range of double-conversion on-line UPS.

It is designed to power critical loads such as servers, storage systems, telephone equipment, medical systems and industrial applications.

Sentinel RT Specifications
riello ups sentryum


  • Efficiency up to 95.5%
  • High power availability
  • Outstanding battery care
  • Compactness
  • Maximum reliability
  • Flexibility of use
  • Graphic touch screen display


Power Range: 10 – 30 kVA

The rapid evolution of IT technologies, augmented focus on environmental matters and complexity of critical applications are demanding more flexible, efficient, secure and interconnected power protection solutions.

The Sentryum 10-30 kVA @ 208 V, 60 Hz offers the best combination of power availability, energy efficiency and global performance ensuring installation and running cost savings. It is the very latest Riello UPS development resulting in a third-generation transformer-free UPS, originally introduced into the market over twenty years ago. This series is a transformer-free UPS available in 10-20-30 KVA with three phase input and output. Sentryum is designed and built using state-of-the-art technology and components. It applies the advanced technologies such as DSP (Digital Signal Processor), dual core microprocessor, three level inverter circuits and resonant control to provide maximum protection to the critical loads with no impact on downstream systems, whilst maintaining optimized energy savings. With a unique control system, it makes it possible to reduce the inverter output harmonic voltage distortion and provide rapid response to all load variations, ensuring an outstanding sinewave form during all conditions.

Furthermore, Riello UPS’s technological advances in digital control and power components contribute to minimize the impact on the grid. Sentryum provides the solution to installation problems in systems where the power supply has limited power available, when the UPS is supported by a generator or where there are compatibility problems with loads that generate harmonic currents.

Sentryum Specifications
riello ups master hp ul 65


IGBT-based rectifier technology
• Compact and reliable
• Galvanic isolation
• High overload capacity

Master HP UL

Power Range: 65 – 500 kVA

The enhanced levels of quality, reliability and energy savings offered by the Master HP range of UPS have been extended to include a 480 Vac – 60 Hz version, certified as UL/CSA, with power ratings from 65KVA to 500 Kva, in single module or parallel configuration.

IT managers, facility managers, and CTOs are under increasing pressure to reduce downtime and assure that their critical loads are supplied with uninterrupted and high quality power.
With this increasingly stringent requirement, Riello UPS has invested in power solutions that meet strict demands; a commitment resulting in the launch of the Master HP UL range.

More than just an innovative and technologically-advanced UPS, it is a leap into the future of three-phase technology.

With its double conversion on-line technology based entirely on IGBT and digital signal processors (DSP), the Master HP UL range ensures maximum critical load protection, with VFI SS 111 classification (Voltage and Frequency Independent) in accordance with IEC EN 62040-3.

This range is designed using a new configuration that includes an IGBT sinusoidal input rectifier. Unique in its design, double conversion technology with galvanic isolated output guarantees a quality power supply that is completely protected from all electrical anomalies at the input.

Master HP UL Specifications