Fundo yakugwilira ntchito ya general-cholinga chikukhazikika pa induction ya magesi. Para ŵaŵika nkhongono, magnetic field yikupangika mu coil, ndipo yikukopa na kujara vigaŵa ivyo vikukhwaskana; para de-nkhongono, magnetic field yikusoŵa, ndipo vikukhwaskana vikujulika. Nthowa iyi yakusinthira makontakti kwizira mu nkhongono ya magesi yikovwira kuti general-chilato cha relay chitumizge na kulaŵilira vimanyikwiro.
Relay ya general-purpose ni chinthu cha magesi icho chikugwiriskirika nchito chomene pakulongozga dera. Vinthu vyake vikuru ni vyakuti vikugwira ntchito mwakupambanapambana, vikugomezgeka chomene, vikulongozga makora, vikusintha chomene, ndiposo vichoko.
General- purpose relays kanandi yikugaŵika mu mitundu yiŵiri: vyakukhwaskana na ŵanthu awo ŵakujulika na awo ŵakujalika. Kaŵirikaŵiri ma contacts ghakujulika ghakujalika para ghalije nkhongono ndipo ghakujulika para ghali na nkhongono; ma contacts agho ghakujalika mwachizoloŵezi ndiwo ghakupambana, ghakujulika para ghalije nkhongono ndipo ghakujalika para ghali na nkhongono. Kapangidwe aka kakupangiska kuti relay yilongozge vimanyikwiro pasi pa maboma ghakupambanapambana umo vikukhumbikwira.
Paumaliro, kugwiriskira ncito kwakuthandazgika kwa general-purpose power relays mu vipangizo vya pa nyumba kukupangiska waka yayi kuti vipangizo ivi viŵe vyakunozga na kugwira nchito, kweni vikupangiskaso kuti umoyo withu uŵe wakunozga na wakusanguluska. Pakuti ŵanthu ŵakulutilira kupanga vinthu viphya vya tekinoloje na kupanga vinthu vinyake, ŵakugomezga kuti vizamuŵa vyakuzirwa chomene ndiposo vyakupambanapambana pa nkhani ya vyakugwiriskira ntchito pa nyumba munthazi.
