Uninterruptable power supply with pure sine wave output USB interface Automatic AC voltage regulation (AVR) Intelligent overload- and short-circuit protection Audible and visual alarms LCD display and LED status indication Internal battery with overcharge and over-discharge protection Type: line interactive Waveform: sine, 5% distortion at linear load, PF > 0.8 Input: AC 220V±25%, 50Hz/60Hz ±10% Output: AC 220V±12%, 50Hz/60Hz ±1% (AC 220V±5% at inverter mode) Switching time: up to 10 ms typically Backup time: 10...30 mins (depends on the load) Battery: 151 x 65 x 94 mm, sealed lead-acid 12V/9Ah, F2 terminals x 4 pcs Charge time: up to 12 hours Sockets: C14 input, 4 outputs x C13; USB-BF connector Operating conditions: 0°C~40°C, at humidity 10~90%RH non condensing Power: 3000VA (2400 W) Charging current: up to 1.7 A Noise: < 50 dB at 1 m distance Dimensions: 467 x 336 x 190 mm Product weight: 28.1 kg "Cold-start" function