1,Stamford Quality,Low Price 2,Power:30KW,37.5KVA 3,Output Type: AC Three - Phase 4,Frequency: 50Hz 1500RPM 5,ISO9001,CE ... smoothly in any occasions.5. Voltage regulation (0.5 %) and low frequency protection, exterior voltage adjustment of SX440, MX341 and MX321 ... Flange adaptor and single bearing coupling disc6. All industrial standard generators is IP 23. HJI Brand 3-Phase Brushless AC Alternator