Product Specifications9-2 Eaton 9E UPS (20–30 kVA, 208/220V) Installation and Operation Manual 164202124—Rev 2 www.eaton.com/powerquality9.2.2 UPS Output9.2.3 UPS EnvironmentalUPS Output Capacity 100% rated currentOutput Voltage Regulation ± 1% (10% to 100% load)Nominal Output Voltage 208 Vac and 220 Vac nominalOutput Voltage Harmonic Content2% maximum THD (linear load)5% maximum THD (nonlinear load)Output Current See Table 3-4.Output Voltage Balance < 2% for 100% maximum load imbalance (linear load)Output Voltage PhaseDisplacement< 2.5 for 100% maximum load imbalance (linear load)Frequency Regulation 0.1 Hz free runningSynchronous to Bypass ± 4 Hz (default setting)Frequency Slew Rate 3 Hz per second (default setting)Load Compatibility0.8 pF Leading0.8 pF LaggingOverload Capability <110% for 10 minutes<125% for 30 seconds<150% for 150 milliseconds>150% for 40 millisecondsOperating Temperature 0 to 30C (32 to 86F) without derating. The recommended operatingtemperature is 25C (77F).Operating Altitude Maximum 1000m (3280 ft) at 30C without deratingStorage Temperature 25 to +55C, excluding batteries (prolonged storage above 40C causesrapid battery self-discharge)Relative Humidity (operating andstorage)5% to 95% maximum noncondensingAcoustical Noise Less than or equal to 57 dB at a 1m distance, per ISO 7779EMI Emissions and Immunity Meets IEC 62040-2 C3 and FCC Part 15 Subpart B, ICES-003, CISPR 22,CISPR 24, and VCCI: Class AElectrostatic Discharge (ESD)ImmunityMeets IEC 61000-4-5 Level 4 specifications. Withstands up to 4 kV pulsewithout damage and with no disturbance or adverse effect to the criticalload.