Key Specifications Parameter Value Model Number EPM 0500MK16FN02000 Series Liebert EPM (Modular) Capacity 500 kVA / 500 kW (unity power factor) UPS Type Three-phase Modular Online / Double-conversion Module Configuration Modular with hot-swappable power modules Input Input Voltage 380/400/415 VAC (3-phase, 3-wire + ground or 4-wire) Input Voltage Range 304 - 456 VAC (full performance) / 228 - 304 VAC (derated) Input Frequency 45 - 66 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) / ±3% (Dynamic load) Output Frequency 50/60 Hz ±0.1% (Battery mode) 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 96.5% (Double-conversion) / Up to 99% (ECO mode) Parallel Capability Multiple cabinets in parallel for redundancy or capacity (multi-megawatt) Topology Transformer-free with three-level IGBT technology Redundancy N+1, N+X configurations supported with modular architecture Battery Battery Type VRLA, lithium-ion, NiCd compatible Battery Voltage Configurable: 480-576 VDC (optimized for lithium-ion) Battery Management Advanced battery monitoring, temperature compensation, automatic testing, cell-level monitoring Charger High-capacity intelligent charger with temperature compensation Physical Form Factor Floor-standing modular cabinet Dimensions (W x D x H) 2000 x 1050 x 2000 mm (78.7 x 41.3 x 78.7 in) typical Net Weight Approx. 2100 kg (4630 lbs) depending on configuration Protection Rating IP20 (standard) / IP21 or higher optional 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 redundant, variable speed fans Management & Communication Display 10-inch multi-language graphical color touchscreen Interface Ports RS-232, RS-485, USB, Ethernet (standard) Communication Protocols SNMP, Modbus RTU, Modbus TCP/IP, BACnet IP, BACnet MS/TP, Profibus Communication Slots Multiple expansion slots for additional communication cards Software Vertiv Power Insight, Trellis DCIM integration, Liebert Nform Features Modular Design Hot-swappable power modules for true N+1 redundancy Bypass Static bypass switch with manual maintenance bypass Generator Compatibility Advanced generator interface with soft start Energy Storage Optimized for lithium-ion with cell-level monitoring Remote Monitoring Cloud-based monitoring capability Cybersecurity Enhanced cybersecurity features for network-connected environments Serviceability Front-access design for reduced footprint and easier maintenance Certifications Compliance CE, UL, IEC, RoHS, ISO 9001 Standards IEC 62040-3, IEC 62040-2, IEC 62443 (cybersecurity)