... 3)CE/CCC/ISO certificates 3Phase Automatic or Manual Transfer Switches for Generator1)rated voltage:AC220,380,400,440,660V 50/60Hz2 ... /Hcontroller ApplicationAutomatic Transfer Switch Equipment(ATSE) is suitable to the power supply system of AC660V,rated frequency50/60Hz and 250VDC ... drive, C type adopt double coil DC impulse, the power of the controller is 220VAC of main and backup power, no ...