Output power capacity 260 Watts / 420VA Output Connections (2) IEC Jumpers (Battery Backup) (1) IEC 320 C13 (Surge Protection) (3) IEC 320 C13 (Battery Backup) Nominal Output Voltage 230V Nominal Input Voltage 230V Input Connections IEC 320 C14 Output Max Configurable Power (Watts) 260 Watts / 420VA Output Voltage Distortion Less than 5 % at full load Output Frequency (sync to mains) 47 - 53 Hz For 50 Hz nominal Sync to mains, 57 - 63 Hz For 60 Hz nominal Sync to mains Topology Line interactive Waveform type Stepped approximation to a sinewave Transfer Time 6 ms typical : 10 ms maximum Input Input frequency 50/60 Hz +/- 3 Hz Auto-sensing Input voltage range for main operations 195 - 265V Batteries & Runtime Battery type Lead-acid battery