I-VS1-12 uchungechunge oluqinile oluvaliwe lwe-vacuum circuit breaker yasendlini iyi-switchgear ephezulu yasendlini yohlelo lwamandla lwezigaba ezintathu olunogesi olinganiselwe ongu-12kV kanye nemvamisa engu-50 Hz.Isetshenziswa njengokuvikela nokulawula izinto zikagesi ngenxa ye-vacuum circuit breaker.Izinzuzo ezikhethekile zifaneleka ngokukhethekile ekusebenzeni okuvamile okudinga amaza amanje alinganiselwe noma ama-short-circuit amaningi.
I-VS1-24 uchungechunge lweziphazamisi ze-vacuum vacuum zasendlini eziqinile zifakwe ngokuqinile, ikakhulukazi ezisetshenziselwa i-switchgear engaguquki.I-circuit breaker ingasetshenziswa yodwa noma ekunikezeni amandla kagesi, i-box transformer noma amasistimu ahlukahlukene angenawo amandla.