I-alloy ye-nickel ye-copper inokumelana nombane okuphantsi, ayitshisi ubushushu kwaye ayitshisi umhlwa, kulula ukuyicubungula kwaye itshisiswe nge-lead. Isetyenziselwa ukwenza izinto eziphambili kwi-thermal overload relay, ukumelana nobushushu okuphantsiumephuli wojikelezo, kunye nezixhobo zombane. Kwakhona sisixhobo esibalulekileyo kwiintambo zokufudumeza zombane.


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