... three phase synchronous generator 2)three phase four wire,50/60HZ 3)IP21-23 4)Voltage:400/230V 5)12 leads reconnectable Leadtech AC three phase synchronous generator: ... Standard at three phase, 50Hz, class H, IP22, Temp Rise 125/40°C, 4 pole. SX460 AVR. Brushless, Self-excited, ... with self-excited system by means of brushless or brush and synchronous features. Voltage regulation can be controlled with ...