Main page B-command components Wind sensors Surge protection Ice Detector Offline filtration Humidity protection Pitch and yaw gear LED light fixture retofit Maintenance products Hydraulic and Filters Carbon brushes Motors Bolts Surge protection Rev. March 28, 2017 File size 2.2 MB Leutron surge voltage protectors have to be selected in accordance to the domi- nating system (TN or TT system) of the wind turbine.