I-AC UPS (Uninterruptible Power Supply) iyisikhombisa esibalulekile esenzakalula ukunikezwa kwezinselelo ezingenakuphela kumathini wokusebenza kwamandla, amandla okungena okungapheli, amandla angaphezu kwenqanaba lelithi. Isisebenza ngokugcinwa kwezinselelo zomoya emakhineshini, oku kuvalwe kuma-AC power eqiniso lapho isikhwama samandla sokubona siphelile, ukuze kube nenqubo engeke yaphela noma kungabi ngenca ye-data noma inqanawa yemikhumbuzo. I-Available kunezinhlanhla nezinhla zokuthola, izinhlobo ze-AC UPS zinezinhlobo ezahlukene, kusuka kudolo lililodwa nezindawo zokusebenza kumasipala amakhulu kanye namadatasheni. Izici ezinhle kuzo ifaka phakathi ukulungisa izindleko, okuyindlela yokulungisa amandla okungenayo, nokulungiswa komoya, okuvikela imikhumbuzo yakho ekuxhumene nezindleko eziphansiweyo. Imikhawulo ephambili kungenjani futhi ikhiphe ukulandelelwa kohlelo olude, ukuvumela abasebenzisi ukulandelela ukusebenza nokuthola izimema ngemigomo yesithombi. Noma bavela ukuvikela i-electronics ebalulekile kudolo lwesifisini noma ukuvikela ukusebenza kudolo lokushaya, i-AC UPS iyisicelo esibalulekile sokuthi kube nenqo neqhina. Ukuze ubone i-AC UPS engcono kakhulu ngokulingana nezidingo zakho zomandla, ukuxhumana ngqo nobhudlisa kuzokuvuma ukuthola isisindo esingenhla.