... :50/60HZ Protection Degree:IP We are the manufacturer of metal distribution boxRated Insulation Voltage:AC500V,AC1000VRated Operation Voltage:AC230V ... /400V,AC380V/660VRated Current:80A,125ARated Frequncy:50/60HZElectric Distribution Box1.TFF1 series total volume is below 100 AMPS ... .The branch switch is miniature circuit breaker.5.The distribution board has the function of delay and instaneous overload ...