STAMFORD AVR: SX460, SX440, MX341,MX321, AVR-8A, AVR-12A, AVR-15A Leroy Somer AVR: R230,R438, R448,R449 Stamford AVR SX460, Stamford Automatic Voltage Regulator, Stamford Voltage Regulator ... Part, Stamford Spare Part, Automatic Voltage Regulator(AVR), Generator AVR. The SX460 is the standard AVR offered with generators in the lower power bands ...