Input: Power factor: >-0.99, Harmonic distortion (THD): 2% (100% nonlinear load), Bypass voltage range: Max. Voltage: 220V +25% (optional +10%, +15%, +20%) 230V 20% (optional +10%, +15%), 240V 15% (optional +10%), Min voltage: -45% (optional -20%, -30%), Frequency protection rage: + - 10%. Generator input: Support. Output - Voltage regulation: + -1%, Power factor: 0.8/0.9 (Customized), Crest factor: 3:01, Harmonic distortion (THDv): <-2% with linear load, <-5% with non linear load, Efficiency: 95%, Battery voltage: Standard unit: + - 216Vdc; Long run unit Optional voltage: + - 192V\+ - 204V\+ - 216V\+ - 228V\+ - 240Vdc. Battery type: 12V/38Ah (standard unit). Charge Current (A): 18A (Max.). Overload - Line Mode: Load <-110%: last 60min, <-125%: last 1min, >-150% turn to bypass mode immediately. Short circuit: Hold Whole System. Low battery voltage: Alarm and Switch off, Self-diagnostics: Upon Power On and Software Control, Battery: Advanced Battery Management, Nose Suppression: Complies with EN62040-2, Audible & Visual: Line Failure, Battery Low, Overload System Fault, Status LED & LCD display: Line Mode, Bypass Mode, Battery Low, Battery Bad, Overload & UPS Fault, Reading on the LCD display: Input Voltage, Input Frequency, Output Voltage, Output Frequency, Load Percentage, Battery Voltage & Inner Temperature. Communication interface: RS232, RS485, Parallel, Intelligent slot.