... Double bearing, brushless, Self-excited. Abounds with almost every model in stock. Frequency And Voltage50Hz or 60Hz as per ... optional but the rated power will decrease 5%. Voltage RegulatorsThe model we use including: MX321, MX341, AS440, SX440, SX460, ... --300240269215.2281225281224.8300240YH274K----291232.8300240300240312.5250 Packing stamford ac alternator model for diesel generator