Key Specifications Parameter Value Model Number UHA3R-0400 Series Liebert ITA (3-phase) Capacity 40 kVA / 40 kW (unity power factor) UPS Type Three-phase Online / Double-conversion Input Input Voltage 380/400/415 VAC (3-phase, 4-wire + ground) Input Voltage Range 304 - 456 VAC (full performance) / 228 - 304 VAC (derated) Input Frequency 40 - 70 Hz Input Power Factor >0.99 Input THDI <3% (with internal filter) Output Output Voltage 380/400/415 VAC (3-phase, 4-wire + ground, adjustable) Output Voltage Regulation ±1% (Static load) Output Frequency 50/60 Hz ±0.2% (Battery mode, auto-sensing) Output Waveform Pure Sine wave Overload Capacity 110% for 60 minutes / 125% for 10 minutes / 150% for 60 seconds Crest Factor 3:1 System Efficiency (AC mode) Up to 96% (Double-conversion) / Up to 98% (ECO mode) Parallel Capability Up to 4 units in parallel for redundancy or capacity (up to 160 kVA) Topology Transformer-free with three-level IGBT technology Redundancy N+1, N+X configurations supported Battery Battery Type External VRLA, lithium-ion, or NiCd compatible Battery Voltage 480 VDC (typical, 40 x 12V batteries in series) Battery Management Advanced ABM technology, temperature compensation, automatic testing Charger High-capacity intelligent charger with temperature compensation Physical Form Factor Rack-mount / Tower convertible (3U height) Dimensions (W x D x H) 430 x 700 x 132 mm (16.9 x 27.6 x 5.2 in) Net Weight Approx. 35 kg (77 lbs) Protection Rating IP20 Environment Operating Temperature 0°C to +40°C (32°F to 104°F) Storage Temperature -25°C to +55°C (-13°F to 131°F) Operating Humidity 0% to 95% (non-condensing) Altitude Up to 1000m without derating / Derated above 1000m Cooling Forced air ventilation with variable speed fans Management & Communication Display Multi-language graphical LCD with touch controls Interface Ports USB, RS-232, RS-485, dry contacts Communication Slots 2 slots for optional SNMP, Modbus, BACnet, or relay cards Software Vertiv Power Insight, Liebert Nform, DCIM integration Features Bypass Static bypass switch with manual maintenance bypass Generator Compatibility Advanced generator interface with frequency tracking Battery Cold Start Cold start capability from battery ECO Mode Energy-saving ECO mode for non-critical loads Remote Monitoring Optional remote monitoring via SNMP or cloud Serviceability Hot-swappable fans and modular design for easy maintenance Certifications Compliance CE, UL, IEC, RoHS compliant Standards IEC 62040-3 (VFI-SS-111 classification), IEC 62040-2