I-vacuum interrupter(VI) ye-Medium-voltage(MV) Vacuum circuit-breaker(VCB) esetshenziselwa kakhulu isiteshi esincane kanye nezinsiza zegridi yamandla emkhakheni wamandla.Lolu chungechunge lwe-vacuum interruper luthatha imvilophu yobumba yobumba,izinto zokuxhumana ze-Cu-Cr. izici zomthamo omkhulu wokushintsha, amazinga aphezulu okufaka i-insulating, amandla aqinile wokucisha i-arc nempilo ende, njll.I-vacuum circuit breaker ehambisana nayo inezinzuzo zokulungisa kalula, akukho bungozi bokuqhuma, akukho ukungcoliswa nomsindo ophansi, njll.,futhi ingasetshenziswa kabanzi emandleni kagesi, emishinini, ensimbi, emnyangweni wamakhemikhali neyamayini, njll., ukulawula nokuvikela uhlelo lokudlulisela nokusabalalisa.