Key Parameters & Specifications Series: Liebert US11TPLUS Series Model: US11TPLUS-0030 Power Rating: 3000 VA / 2700 W Topology: Online double-conversion Input Voltage: 220/230/240V AC (+25% / -25%) Input Frequency: 40–70 Hz (auto-sensing) Output Voltage: 220/230/240V AC (±1%) Output Frequency: 50/60 Hz ±0.1% (online mode) Output Waveform: Pure sine wave Efficiency: Up to 91% (online mode) / 98% (eco-mode) Battery Type: Maintenance-free sealed lead-acid Typical Backup Time: 5–10 minutes at full load (expandable with external battery cabinets) Communication Ports: USB, RS-232, dry contacts, and optional SNMP card Form Factor: Tower Dimensions (H×W×D): 460 × 190 × 550 mm (18.1 × 7.5 × 21.7 inches) Weight: ~35 kg (77 lbs) Operating Temperature: 0°C to 40°C (32°F to 104°F) Certifications: CE, IEC/EN 62040, RoHS Key Features True Online Double-Conversion: Complete isolation from input power disturbances Wide Input Voltage Window: Reduces battery usage under unstable grid conditions Eco-Mode Operation: Energy-saving mode with seamless transfer to online mode Intuitive LCD Display: Real-time status monitoring and configuration Advanced Battery Management: Temperature-compensated charging extends battery life Hot-Swap Batteries: Tool-free battery replacement without powering down connected equipment External Battery Support: Scalable runtime with optional external battery cabinets Network Manageability: Compatible with SNMP for remote monitoring Emergency Power Off (EPO): Remote emergency shutdown capability Typical Applications IT server rooms and small data centers Network and telecommunications equipment Industrial control systems Medical imaging and diagnostic equipment Security and surveillance systems High-end workstations and storage systems Specifications Details Parameter Value Rated Power 3000 VA / 2700 W Input Voltage Range 165–300V AC Input Power Factor >0.99 Output Voltage Regulation ±1% Overload Capacity 110% for 10 min / 130% for 1 min Transfer Time 0 ms (online mode) Battery Type VRLA 12V / 9Ah Battery Quantity 6 internal (expandable) Charging Time 4–6 hours to 90% Communication USB, RS-232, dry contacts Noise Level <50 dB at 1 meter Protection Overload, short circuit, overtemp Enclosure Rating IP20