SKE SR Series 1K–10KVA Rack-Mount Online UPS | 2U High-Frequency, True Online Double Conversion, Pure Sine Wave, Compact Rack/Tower for Servers & IT Equipment
Product Overview
The SKE SR Series (1K–10KVA) is a high-frequency, true online rack-mount UPS engineered for modern IT infrastructure. Its 2U compact chassis fits standard 19-inch server racks and supports quick rack/tower conversion, making it ideal for space-constrained data centers, SMB server rooms, network cabinets, and telecom sites. With pure online double-conversion (AC-DC-AC) technology, it continuously regulates voltage and frequency, isolates grid disturbances, and guarantees uninterrupted, high-quality power for sensitive IT and network equipment—even in unstable grid conditions.
Key Features & Benefits
True Online Double Conversion: 0ms transfer between mains/battery; full protection against all power anomalies.
2U Rack-Mount Compact Design: Standard 19" rack; convertible to tower; depth <500mm for easy installation.
Ultra-Wide Input Voltage (110–300VAC): Adapts to weak/fluctuating grids; minimizes battery usage.
High Output Power Factor (0.9): Delivers more usable power (kW) for modern IT loads.
High-Efficiency Performance: Up to 94% online efficiency; ECO mode (~98%) for energy saving.
Pure Sine Wave Output: Low distortion (<3%); compatible with all sensitive IT/network devices.
DSP Digital Control: Fast transient response, high precision, and stable performance.
Intelligent LCD + LED Display: Real-time status monitoring (voltage, load, battery, alarms).
Flexible Communication: USB, RS-232, SNMP (optional), dry contact, EPO for remote management.
Smart Battery Management: Auto-charging, deep-discharge protection; hot-swappable batteries (1–3KVA).
Wide Frequency Range (40–70Hz): Fully generator-compatible.
Comprehensive Protections: Overload, short-circuit, over/under-voltage, over-temperature, surge/lightning, battery protections.
Reliable & Durable: Operates 0–40°C; RoHS compliant; CE & IEC certified.
Technical Specifications
| Parameter | Specification |
| Model | SR1K, SR2K, SR3K, SR6K, SR10K |
| Rated Power | 1KVA/900W – 10KVA/9000W (PF=0.9) |
| Topology | True Online Double Conversion (High Frequency) |
| Input | 1-phase, 110–300VAC, 40–70Hz, PF ≥0.99 |
| Output | 1-phase, 220/230VAC, pure sine wave, ±1% regulation |
| Frequency | 50/60Hz auto-sensing; ±0.01% (battery mode) |
| Transfer Time | 0ms (AC↔Battery) |
| Efficiency | Up to 94% (online); ~98% (ECO mode) |
| Waveform Distortion | <3% (linear load); <5% (non-linear load) |
| Form Factor | 2U Rack-Mount / Tower Convertible |
| Battery | Maintenance-free VRLA; internal (standard) / external (long-run) |
| Recharge Time | ~4–5 hours to 90% capacity |
| Communication | USB, RS-232, SNMP (optional), Dry Contact, EPO |
| Display | LCD + LED Indicators |
| Operating Environment | 0–40°C, 20–90% RH (non-condensing) |
| Protection Class | IP20 |
| Certifications | CE, IEC62040, RoHS, ISO9001 |
Ideal Applications
Server Racks & Data Center Edge Computing
Network Closets & IT Equipment Rooms
Servers, Storage, Switches & Routers
VoIP & Telecommunication Systems
SMB & Enterprise IT Infrastructure
Bank Branches & Financial Terminals
Medical & Laboratory Precision Equipment
Industrial Control & Automation Cabinets
Retail POS & Security Systems
Why Choose SKE SR Series Rack UPS?
Space-Saving 2U Design: Maximizes rack density for modern IT deployments.
True Online Reliability: 0ms transfer ensures zero downtime for critical systems.
High Power Density: 0.9 PF delivers full wattage to support high-efficiency servers.
Wide Grid Compatibility: Ultra-wide input thrives in unstable power environments.
Easy Integration: Rack/tower convertible; universal monitoring & communication.
Cost-Effective Enterprise Performance: Industrial-grade quality at a competitive price.
Proven SKE Quality: Designed for 24/7 operation with minimal maintenance.
