🔋 APC Smart-UPS Ultra vs Eaton 9PX vs Riello Sentryum
AI-powered analysis across 25 matched specifications



Performance Overview
Scores based on quantifiable specification values (1-10 scale)
Detailed Specifications
| Specification | APC Smart-UPS Ultra APC | Eaton 9PX Eaton | Riello Sentryum Riello |
|---|---|---|---|
| Key Metrics | |||
| Topology | Online double-conversion with automatic/manual bypass | Online double-conversion with bypass | Online double-conversion, transformerless |
| Power Range | 1500VA/1500W or 3000VA/3000W | 1500VA/1500W, 2200VA/2200W, 3000VA/3000W, 6000VA/6000W | 10, 15, 20, 30, 40, 60, 80, 100, 120 kVA |
| Output Waveform | Pure sine wave, < 2% THD at linear load | Pure sine wave, <2% THD at linear load | -- |
| Transfer Time | Zero (online); 4ms to bypass on inverter fault | Zero (online); <4ms to bypass | -- |
| Efficiency | Up to 97% online; up to 99% ECO mode | -- | Up to 96.6% online mode |
| Power Factor | -- | -- | Unity (kVA = kW) |
| Output THD | -- | -- | < 1% (resistive); < 1.5% (non-linear load) |
| Overload Capability | -- | -- | 125% for 10 min; 150% for 1 min; 270% for 200ms short circuit |
| Power | |||
| Input Voltage | 208–230V AC (IEC model); 50/60Hz +/-3Hz | 230V AC, 50Hz (IEC C14/C20 input) | -- |
| Output Voltage | -- | 230V AC +/-1% online; +/-2% on battery | -- |
| Input Config | -- | -- | 3:3, 3:1, or 1:1 phase configurations |
| I/O & Ports | |||
| Outlets | 3 x IEC C13 + 2 x IEC C19 (3kVA model) | 8 x IEC C13 + 1 x IEC C19 (model dependent); 6kVA: C19 inputs | -- |
| Storage | |||
| Battery Type | Lithium-ion (integrated) | VRLA sealed lead-acid; hot-swap front accessible | VRLA sealed lead-acid |
| Battery Life | 8–10 years | ABM 3-stage — up to 50% longer battery life | -- |
| Recharge Time | 1.5 hours (80% capacity) | -- | -- |
| Runtime Extension | Up to 5 x SRTL50RMBP1U-Li external battery packs | Up to 4 x EBM Extended Battery Modules | -- |
| Parallel Units | -- | -- | Up to 8 units for N+1 or N+N redundancy |
| Physical / Environmental | |||
| Form Factor | 1U rack (43mm H x 432mm W x 560mm D); tower convertible | 2U rack/tower (1.5–3kVA); 3U rack/tower (6kVA) | Compact (CPT), Active (ACT), Xtend (XTD) cabinet options |
| Weight | 15.9kg (3kVA model) | -- | -- |
| Management | |||
| Management Interfaces | SmartConnect (built-in Ethernet); USB; optional NMC SmartSlot | USB HID, RS-232; optional NETWORK-M3 Gigabit NMC | RS-232, USB, dry contacts; optional NetMan 208 SNMP card |
| Display | -- | -- | 5-inch colour touchscreen + LED status indicator |
| Software & OS Compatibility | |||
| Software | -- | Eaton Intelligent Power Manager (IPM) | -- |
| Certifications | -- | VMware Ready; Citrix Ready; CE, CB, TUV | IEC 62040-1, IEC 62040-2, VFI-SS-111 |
| Warranty & Support | |||
| Warranty | 5 years including battery | 3 years electronics and battery | -- |
| Compute | |||
| Processor | -- | -- | Dual-core DSP; 3-level inverters at 18kHz |
Expert Analysis
These three UPS systems represent distinct tiers of enterprise power protection, each optimised for different deployment scales and operational requirements. The APC Smart-UPS Ultra excels in space-constrained environments with its 1U form factor and lithium-ion battery technology, offering 8-10 year battery life and rapid 1.5-hour recharge. Its 5-year comprehensive warranty and SmartConnect cloud monitoring make it particularly suitable for distributed IT deployments where physical access is limited. The Eaton 9PX provides a balanced mid-range solution with hot-swappable VRLA batteries and ABM charging technology that extends battery life by up to 50%, complemented by VMware-certified graceful shutdown capabilities through Eaton IPM software.
The Riello Sentryum operates in an entirely different class, supporting up to 120kVA with unity power factor and parallel configurations for eight units, enabling N+1 or N+N redundancy for critical infrastructure. Its transformerless design achieves 96.6% efficiency while maintaining less than 1% output THD, and the three cabinet variants offer flexibility for different cooling and expansion requirements. The dual-core DSP processor and 5-inch colour touchscreen provide sophisticated monitoring and control capabilities appropriate for data centre environments. Organisations should select based on their power requirements, with the APC and Eaton models serving rack-level protection up to 6kVA, while the Riello addresses facility-level needs from 10-120kVA with superior scalability and redundancy options.
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