Controller esinga okuba ennyangu ye switch eyunga motor ku masannyalaze, gamba nga mu byuma ebitonotono eby’omu nnyumba oba ebikozesebwa mu masannyalaze. Sswiiki esobola okukolebwa mu ngalo oba okutandika oba okuyimirizibwa mu ngeri ey’otoma ng’okozesa relay oba contactors eziyungiddwa ku sensa. Sswiiki esobola okuba n’ebifo eby’enjawulo ebisobola okulondebwa, ekisobozesa mmotoka okuyungibwa ku masannyalaze mu ngeri ez’enjawulo, gamba ng’okukendeeza ku vvulovumenti y’okutandika, okukyusa emirimu, oba okulonda sipiidi ez’enjawulo. Ebifuga ebitonotono biyinza okulekayo ebyuma ebikuuma omugugu ogusukkiridde n’okusukka amasannyalaze, nga byesigamye ku nkulungo y’okukuuma amasannyalaze agasukkiridde ag’ebweru okuziyiza amasannyalaze agasukkiridde. Mota ezimu entono zizimbye-mu bukuumi bw’okutikka okusukkiridde obuggulawo circuit mu ngeri ey’otoma okuziyiza okutikka okusukkiridde. Motors ennene zijja kuba ne overload relays oba temperature-sensing relays, wamu ne fuses oba circuit breakers ezigattibwa ku controller okuziyiza overcurrent. Ebintu ebifuga mmotoka mu ngeri ey’otoma nabyo biyinza okubeeramu ebikyusa ekkomo oba ebyuma ebirala okukuuma ebyuma.
Ebifuga mmotoka ebizibu ennyo bisobola okufuga obulungi sipiidi ne ttooki ya mmotoka era biyinza n’okuba ekitundu ku nkola y’okufuga loopu enzigale-okufuga ekifo ky’ebyuma.
