KSTAR Powercom 3000VA Line Interactive UPS With USB Features: - AVR Boost and Buck - Cold Start Function - Smart RS-232/USB Interface for Power Management - Built-In-Self-Diagnostic Function - Modem/LAN Internet Protection - Generator Compatible (Optional) - LCD Display - Fast Charging Capacity - Auto Charging at Off Mode - Auto Restart while AC is Recovering Specifications: - Capacity (VA/Watts): 3000/1800 Input: - Nominal Input Voltage: 220/230/ 240 Vac - Operating Voltage Range: 162, 290 Vac - Operating Frequency Range: 50/60 HZ (1 +/- 10%) Output: - Output Voltage Range (Batt. Mode): Simulated Sinewave at Nominal Voltage +/- 10% - Frequency Range (Batt. Mode): 50 Hz or 60 Hz +/- 1Hz - Transfer Time: Typical 2-6 ms, 10ms Max Battery: - Battery Type & Number: 12V / 9Ah x4 - Typical Recharge Time: 6-8 hours (To 90% Capacity) Protection: - Full Protection: Overload and Overcharge Protection Indicators: - LCD Display: AC Mode, Battery Mode, Load Level, Input Voltage, Output Voltage, Overload, Fault, Battery Low Alarm: - Battery Mode: Sounding every 10 seconds - Battery Low: Sounding every second - Overload: Sounding every 0.5 second - Battery Replacement Alarm: Sounding every 2 seconds - Fault: Continuously Sounding Management: - USB & RS-232 Port (Optional): Supports Windows 2000/2003/XP/Vista/2008, Windows 7, Linux, Unix, and MAC Environment: - Operating Temperature: 0, 40 degree C - Humidity Range: 0 to 95% (Non-condensing) - 40dB (1 meter from surface) - Warranty: 6 Months