Emerson Liebert PSA 500VA. Output power capacity (VA): 500 VA, Output power: 300 W, Power supply input frequency: 50 - 60 Hz. Battery recharge time: 6 h, Typical backup time at half load: 10 min, Typical backup time at full load: 3 min. Colour of product: Black. Weight: 5.4 kg. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -15 - 40 °C, Operating relative humidity range: 0 - 90 %