I-ZW8- 12 Series VCB, iyimishini yokushintsha i-voltage ephezulu yangaphandle ene-voltage elinganisiwe engu-12KV, i-AC enezigaba ezi-3 engu-50HZ. Ngokuyinhloko iyi- isetshenziselwa ukuphula ugesi womthwalo, ugesi ogcwele ngokweqile kanye nogesi wesifunda esifushane wegridi yamandla yasemakhaya, igridi yamandla yasemadolobheni kanye nogesi omncane uhlelo. Isakhiwo sinezigaba ezintathu ebhokisini elifanayo. Isivimbeli se-vacuum esinezigaba ezintathu sisebhokisini lensimbi, samukelwe ngezinto ezivikelwe I-SMC njengokufakwa kokuvikela kwesigaba kuya kwesigaba kanye nokufakwa kokuvikela komhlaba. Isebenza kahle kakhulu, izinga lokuvikela liphezulu kakhulu.
I-ZW8-12G iyinhlanganisela ye-ZW8-12 kanye ne-isolation switch, ebizwa ngokuthi i-combination circuit breaker, ingasetshenziswa njenge- ukunqamula ukushintsha.
I-actuator yalo mkhiqizo uhlobo lwe-CT23, indlela yokushaja yentwasahlobo, ingaba uhlobo lukagesi noma uhlobo lwesandla.