Voltage Regulator We supply AVR: SX460,SX440,AS440,MX321,MX341,R230,R448,R449,R438,SE350,YH-8A,YH-12A,YH-15A,etc. Voltage RegulatorSX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator(AVR) and forms part of the excitation system for a brushless alternator.Technical specificationinputvoltageJumper selectable 95-132V ac or190-264V acfrequency50-60 Hz ...