

Modular plug-and-play ON LINE UPS with 20 kVA/kW building blocks, auto-detecting single/three-phase input, unity power factor up to 40 deg C, 96.3% VFI efficiency, and industrial-grade harting connectors. Suitable for standalone and rack installations in e-medical, emergency, industrial and transport environments.
The Riello Sentryum Rack is a compact, rack-mountable three-phase UPS from 20 to 160 kVA, ideal for edge data centers, branch offices, and small colocation suites. It combines high efficiency and small footprint with flexible battery options to deliver a strong fit for dense environments.
Its modern industrial design and graphical touchscreen interface reflect Riello’s focus on user experience across modern IT deployments.
A full-featured three-phase UPS designed for rack installation, removing the need for a separate UPS room in small and medium deployments.
Advanced inverter technology delivers up to 96.5% efficiency in online mode, minimizing energy cost and heat generation in dense IT environments.
Both VRLA and lithium-ion battery configurations are supported, letting operators choose between upfront cost and long service life.
A bright color touchscreen, together with modern network and protocol support, makes daily operation and diagnostics fast and intuitive.
| General Data | |
|---|---|
| Power Range | 20 - 160 kVA/kW |
| Output Power Factor | 1.0 (kVA = kW) |
| Module Size | 20 kVA/kW per module |
| Topology | Online double conversion, modular |
| Input | |
| Rated Voltage | 220/230/240 single-phase+N and 380/400/415 three-phase+N |
| Voltage Tolerance | 230/400 +/-20% @ full load |
| Frequency Tolerance | 40 - 72 Hz |
| Power Factor @ Full Load | 0.99 |
| Current Distortion | THDi <= 3% |
| Output | |
| Nominal Power | 20 kVA per module |
| Rated Frequency | 50 or 60 Hz |
| Voltage Stability | +/-1% |
| Voltage Distortion | < 1% resistive / <= 1.5% non-linear |
| Frequency Stability (Battery) | 0.01% |
| Battery | |
| Type | VRLA AGM/GEL/NiCd/Li-ion/SuperCaps |
| Recharging Method | One level, Two level, Cyclic (selectable) |
| Mechanical | |
| Module Dimensions | 445(19") x 664 x 397 mm (9U) |
| Module Weight | 41 kg |
| Cabinet Dimensions | 700 x 750 x 2060 mm |
| Max Modules per Cabinet | 3 |
| IP Rating | IP20 |
| Environmental | |
| Operating Temperature | 0 to +40 deg C |
| Humidity | 5-95% non-condensing |
| Noise Level | < 40 dBA for single module |
| Efficiency (SMART ACTIVE) | Up to 99% |