Ziyini i-NO kanye ne-NC ku-contactor ye-AC?

I-contactor ye-ACiyisakhi sikagesi esisetshenziswa kakhulu ekulawuleni kwezimboni. Phakathi koxhumana nabo be-AC contactor, ngaphezu koxhumana nabo abayinhloko (bobabili ngokuvamile abavulekile), kukhona noxhumana nabo abasizayo.

Ngokuvamile kuba nokuxhumana okusizayo okuvulekile nokuvamise ukuvalwa. Kukhona uphawu emzimbeni we-contactor ukuhlukanisa injongo yokuxhumana okusizayo.

I-NC ku-contactor ye-AC isho ukuthintana okuvamile kuvaliwe, CHA isho ukuthintana okuvamile kuvulekile.
Izincazelo zezinhlamvu zimi kanje:
N=OJWAYELEKILE
O=VULIWE
C=VALA
CHA: Ivuliwe Ngokujwayelekile
NC: okuvamile Vala

Ngakho-ke, uma sibona i-contactor kanye ne-wiring, singakwazi ukuhlukanisa phakathi kwe-NO kanye ne-NC okuyi-contact evame ukuvuleka kanye ne-contact evame ukuvalwa ngaphandle kokusebenzisa i-multimeter.