ZJchao(TM) Automatic Voltage Regulator AVR SX460 for Generator [Electronics] SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator(AVR) the exciation system for a brush-less generator Provision is made for the connection of a remote voltage trimmer,allowing the user fine control of the generators output Input:Jumper selectable 95-132V ac or 190-264V ac Output:Max 90V DC at 207V AC input