... 1, insulation class for class B, protection grade for IP21; 2, generator base for ... .8150050STC-5050/62.540090.20.8150050 ST/STC series three-phase ac synchronous generator applies to rural ... used as an emergency use standby power. This series of generator rotor saliency type for spin, the harmonic ... below:1, insulation class for class B, protection grade for IP21;2, generator base for casting structure; ...