Output power capacity 550 Watts / 1.1 kVA Max Configurable Power (Watts) 550 Watts / 1.1 kVA Nominal Output Voltage 230V Output Frequency (sync to mains) 50/60 Hz +/-1 Hz Output Frequency (not synced) 50/60 Hz +/-1 Hz Topology Line Interactive Waveform type Stepped approximation to a sinewave Output Connections (2) IEC 320 C13 (Battery Backup); Transfer Time 4ms typical : 6ms maximum; Nominal Input Voltage 230V Input frequency 50/60 Hz +/- 3 Hz (auto sensing) Input Connections IEC-320 C14, NEMA 5-15P Cord Length 1.22 meters Input voltage range for main operations 150 - 280 V Number of Power Cords 1 Type of Input Protection Required 3-pole breaker Maximum Input Current 10.0 A Input Power Factor at Full Load 0.5; attery type Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Included Battery Modules 1 Typical recharge time 6 hour(s)