Ngati fuselink yakhazikika, chubu cha fuse chimakonzedwa kuti chikhale pafupi. Ngati pali zolakwika mu dongosolo, mphamvu yamagetsi imapangitsa kuti fuse isungunuke nthawi yomweyo ndikutenga magetsi, zomwe zimapangitsa kuti chubu chozimitsira arc chitenthedwe ndikuphulika mpweya wambiri, izi zimapanga kuthamanga kwakukulu ndipo pansi pa chubucho, fuselink ikasungunuka, mphamvu yosuntha yolumikizana nayo ikapanda kulimbanso, mphamvu yolumikizana nayo ikatsekedwa ndipo chubu cha fuse chimatuluka, chodulidwacho chimakhala pamalo otseguka. Ngati ikufunika kuzimitsidwa panthawi yodula, imagwira ntchito kudzera mu insulating operation bar, ndipo poyambira kukhudzana kwakukulu ndi kothandizira kolumikizana kosasinthasintha, komwe kumalumikizidwa ndi kontrakitala, pamene kukoka kontrakitala kumalekanitsidwa pakati pa ma contact othandizira, pamakhala arc yamagetsi ndipo arc idzakulitsidwa mumpata wozimitsira arc ndipo panthawiyi arc-extinguisher gasi amaphulika kuti atulutse arc panthawi yamagetsi.