1) splited plug-in controller,convenient for operation; 2)with generator starting signal; 3)CE/CCC/ISO ... frequency50/60Hz and 250VDC.the applied places like fire control, postal communication, hospital, hotel, urban rail transport, ... 220VAC of main and backup power, no extra control power.Parameters: rated current(A)32working current(A ... times)10 3Phase 100A Automatic Transfer Switches for Generator