An Sehokelo sa ACke karolo ea motlakase e nang le motlakase o tlase e sebelisetsoang ho hokahanya le ho khaola lipotoloho tse kholo tsa AC khafetsa libakeng tse telele. E sebelisoa haholo taolong ea enjene, kabo ea matla, boiketsetso ba indasteri, le ho aha litsamaiso tsa motlakase. Mosebetsi oa eona o ka sehloohong ke ho fihlella taolo ea ho qala le ho emisa ea lisebelisoa tsa motlakase ka ho hohela likhokahano ka likhoele tsa motlakase, 'me e boetse e na le bokhoni ba ho sebelisoa hammoho le litsamaiso tsa tšireletso ea ho feteletsa lintho. Li-contactor tsa AC li sebelisoa hangata lipompong tsa metsi, lifeneng, li-air conditioner, lifti, lisebelisoa tsa tlhahiso, likhabineteng tsa ho qala tsa enjene le litsamaisong tsa taolo ea mabone, tse ka ntlafatsang boemo ba polokeho le boiketsetso ba taolo ea potoloho ka katleho.

Litšebelisong tse sebetsang, li-contactor tsa AC li khethoa ho latela matla a tsona a hona joale a lekantsoeng, motlakase oa coil, palo ea lipalo le tikoloho ea ts'ebeliso. Mohlala, lisebelisoa tse nyane tsa malapa kapa tse bobebe tsa indasteri hangata li sebelisa litlhaloso tsa 9A ho isa ho 32A, ha lisebelisoa tse kholo tsa fektheri li ka sebelisa li-contactor tse matla a phahameng tse nang le bokhoni ba ho feta 65A. Mefuta e tloaelehileng e kenyelletsa Schneider Electric, Siemens, ABB le mofuta oa lapeng oa Chint, jj.

Mabapi le theko, li-contactor tsa AC li fapana haholo ka lebaka la litlhaloso le mabitso: theko ea 'maraka ea lihlahisoa tse nyane tsa 9A ho isa ho 18A e ka ba yuan e 50 ho isa ho 150 ka sengoathoana, ea lihlahisoa tsa boholo bo mahareng tsa 32A ho isa ho 65A e ka ba yuan e 150 ho isa ho 500 ka sengoathoana,' me ea lihlahisoa tse matla tsa 100A le tse holimo ka kakaretso e ka ba yuan e 500 ho isa ho 2,000 kapa ho feta. Mefuta e tsoang kantle ho naha hangata e bitsa chelete e ngata ho feta ea lapeng, empa e na le melemo e itseng mabapi le botsitso, nako ea bophelo le ts'epo. Ka hona, mererong ea boenjiniere, khetho e utloahalang e lokela ho etsoa hammoho le bokhoni ba mojaro, tikoloho ea ts'ebeliso le tekanyetso.