... ,Low voltage,Delay time,Feed phase,Circuit breaker Input voltage Single Phase:AC175-265V Three Phase four-line: 175V-265V(phase voltage) 300V-456V(line ... -490V(line voltage)Output voltage Single Phase:AC220V (adjustable) ,Three Phase:380V (adjustable) Frequency 50/60Hz PhaseThree Phase Efferency≥95% Ambient temperature-10°C ...