... inch rack, power machine cabinet installation5.Over-voltage, low-voltage, short-circuit, over-load protection6.AC main supply, DC main ... formSine waveCrest factor3:1Total voltage harmonics distortionlinear load <3%,non-linear load <5%Overload protection>125%,1min;>150 ... range of voltage and frequency, over current, short circuit, over temperature ect.Full load efficiency>85%Transfer time<8msCrest ...