SF6 Gas-insulated indoor switch disconnector (SFG), Rated voltage 12KV SFG is an SF6 insulated three-position (close, open,earth on) switch ... proof enclosure, inspection windows, integrated voltage indicator, interlocking device, gas gauge, etc. Economy: A life span of minimum 30 ... duration of short circuits2Rated peak withstand currentkA62.5 SF6 Gas-insulated indoor switch disconnecter (SFG)