UPS for small and medium-sized critical installations

Sentryum is Riello’s third generation transformer-free online UPS. The series delivers stable and clean power to technical rooms, smaller data centers, control rooms, and other critical installations. The solution is housed in compact cabinets with flexible power and battery options.

Typical setup

UPS from 10 to 120 kVA
Choice of multiple cabinets for efficient use of space
Internal or external battery bank
Monitoring of load, batteries, and system status
Easy installation and service
Parallel connection of multiple units when needed

The solution is suited for small and medium-sized critical installations.

Variants / models / configurations

Power ranges

10, 15, 20, 30, 40, 60, 80, 100 and 120 kVA

Cabinet options

Compact (CPT) with a small footprint and one internal battery string
Active (ACT) with up to two battery strings in a compact cabinet
Xtend (XTD) with space for three battery strings or an external battery bank

Parallel connection

Parallel connection of up to eight units for higher capacity or redundancy
Closed-loop control maintains operation in the event of a cable break in the parallel system

Functions and technology

Efficiency up to 96.6 percent in online double conversion
Power factor 1.0 where kVA equals kW and provides full utilization towards the load
DSP-based regulation, three-level inverter, and high-frequency operation provide precise voltage and low energy loss
Low harmonic distortion
High short-circuit and overload capacity, withstands 125 percent load for 10 minutes and 150 percent for 1 minute without switching to bypass
Support for VRLA, AGM, GEL, open batteries, supercapacitors, and lithium batteries
Battery management with deep-discharge protection and an optimal charging profile
Control panel with a 5-inch color touchscreen and a clear LED indicator for status, load, and battery level

Applications

Small and medium-sized data centers
Server rooms and ICT rooms
Technical rooms in buildings and facilities
Control rooms and automation systems
Building automation, public sector, and office buildings
Installations with limited space and requirements for a compact solution

Sentryum provides stable and efficient UPS operation where requirements for power and availability are high, and the power demand is small to medium.

Advantages

Flexible series with many power and cabinet choices
Compact solution with efficient use of available area
High energy efficiency provides low operating costs
Stable operation with load variations and non-linear loads
Parallel operation provides high redundancy
Support for multiple battery technologies and customized battery storage
Easy monitoring and integration with operating systems

Takeaway

Sentryum is Riello’s flexible UPS series for small and medium-sized installations. With a wide power range, high efficiency, compact cabinets, and robust technology, Sentryum delivers secure power supply to technical rooms, data centers, ICT installations, and buildings with critical loads. The series provides a strong balance between flexibility, reliability, and operating costs.