Ama-circuit breaker angamadivayisi abalulekile kumasistimu kagesi, anika amandla ukulawulwa kokushintshwa kwesekethe nokuvikela amaphutha okuzenzakalelayo. Asetshenziswa kakhulu kuzo zonke izimo, kusukela kugesi wasendlini kuya kumagridi kagesi aphezulu. Imisebenzi yabo eyinhloko ukuvikela ukulayisha ngokweqile/okufushane kwesekethe/ukuvuza, ukuphepha kwemishini, ukuzinza kokunikezwa kwamandla, nokuvimbela umlilo nokushaqeka kukagesi.
Ukuvikelwa kwesekethe enkulu/yegatsha emabhokisini okusabalalisa: Ukuvikelwa okuzimele kokukhanyisa, amasokhethi, isimo somoya, kanye namasekhethi asekhishini/egumbi lokugezela; i-fault tripping akuthinti ukunikezwa kwamandla endlini yonke.
Ukuvikelwa kwamanje okuyinsalela (I-I-RCCB/ RCBO): Ukuvikelwa ngokumelene nokushaqeka kukagesi ezindaweni ezinomswakama (izindlu zangasese, amakhishi); ukuvikela okuyinhloko kokuvuza komugqa ongenayo kuthuthukisa ukuphepha komuntu siqu.
Ukunqamuka kukagesi ngesikhathi sokulungiswa/ukulungisa: Ukunqanyulwa mathupha ukuze kuhlolwe izintambo eziphephile nezinto ezisetshenziswayo.
Ukusatshalaliswa kwamandla amakhulu kanye nokuvikelwa kwegatsha kuma-workshops: Ama-frame circuit breaker (ACBs) asetshenziselwa ulayini ongenayo oyinhloko wefektri kanye nohlangothi oluphansi lwe-voltage ye-transformer;ama-ama-molded case circuit breakers (MCCBs)zisetshenziselwa isekethe imishini kanye nokulawula motor.
Ukuvikelwa kwezimoto: Kuvikela amafeni, amaphampu, ama-compressor, amathuluzi omshini, njll., ekulayishweni ngokweqile, endaweni yokudayisa, kanye nokutubeka kokulahlekelwa kwesigaba.
Izindawo ezikhethekile: Akwazi ukuqhuma (izimayini zamalahle, izitshalo zamakhemikhali), izinga lokushisa eliphezulu/imelana nokugqwala (insimbi, ukwakha umkhumbi).
Uhlelo lokuvikela olunamazinga amaningi: Ukudidiyelwa kwamazinga amathathu weswishi eyinhloko - igatsha - okokusebenza, ukuqinisekisa ukuhlukaniswa okunephutha okuqondile kanye nokunciphisa indawo yokunqamuka kukagesi.