As tingting bilong wokim ol 'relay' em long winim 'low-voltage kontrol bilong hai-voltage, 'electrical isolation', na 'signal amplification', na tu tingim sefti, 'reliability', na 'intelligent requirements'.
Indastriel Otomesen: PLC kontrol bilong stat/stop bilong moto na on/of solenoid valv; imejensi stop (ESD) insait long ol sefti seket.
Ol Pawa Sistem: Seket switsing na proteksen insait long ol distribusen kebinet (olsem, ol 'overcurrent relays'); DC-sait switsing na inveta kontrol insait long ol fotovoltaik sistem;
Smat Haus: Rimot kontrol bilong ol lait na ea kondisen; ol sekyuriti alam sistem.
Kwikpela switsing spit na rispons spit; i abrusim ol hevi bilong ol 'traditional relays' olsem nois, ol pawa bilong lektrik, na ol samting we inap long bagarapim pawa; sampela 'solid-state relays i save bungim ol wok bilong painim na lukautim, na i save givim gutpela wok na longpela sevis laip; tasol, sapos i no gat gutpela 'isolation' dispela inap long kamapim 'leakage current' insait long 'working circuit' na 'positive voltage difference', na dispela i nidim tingting long 'device heat dissipation'.
Wanpela 'relay' em i wanpela swit we i gat pawa we i save bosim wanpela bikpela pawa seket wantaim liklik pawa signal, na planti taim ol i save yusim long 'automation control', pawa sistem, na ol ilektronik ikwipmen.
Ol i save yusim input signal (elektrikel, magnetik, optikal, na ol narapela) long bosim on/of o switsing bilong autput seket, na long dispela rot ol i save kamapim lektrikal aisolesen na signal amplifikesen.
