... proof enclosure, inspection windows, integrated voltage indicator, interlocking device, gas gauge, etc. Economy: A life span of minimum 30 years ... for life, low maintenance costs Reliability: Stringent testing of each unit, extremely durable and reliable actuator, worldwide use, etc. Smart ... duration of short circuits2Rated peak withstand currentkA62.5 SF6 Gas-insulated indoor switch disconnecter (SFG)