... Three - Phase 4,Frequency: 50Hz 1500RPM 5,ISO9001,CE,CQC HJI Stamford Brushless Generator(6.5KW)A: Our own brand "hengjiu" brushless alternator, Stamford Brushless Generator ... .55, Output Type: AC Three - Phase6, Frequency: 50/ 60Hz 1, 500RPM/ 1, 800RPM7, Phase/ Connecting method: Three - Phase, Four - Wires8, Rated ... , 2, 3, 4 and 5 are available Stanford Brushless Synchronous Generator/Alternator