... RPM , 60HZ = 1800 RPM.Power Factor =0.8 SPG Series Brushless alternator characteristic as follows : 1. Steel frame , Cast ... : Hexagonal steel plate11. Optional: with switch box or without switch box .12. this series brushless alternator hase outstanding performance, reliable ... , it can be connected with engine Product DescriptionSPG series brushless alternator.50Hz,class H,IP23,voltage adjust small ...