I-copper nickel alloy, enokumelana nogesi okuphansi, ukumelana kahle nokushisa kanye nokungagqwali, kulula ukucutshungulwa futhi kushiselwe umthofu.Isetshenziselwa ukwenza izingxenye ezibalulekile ku-thermal overload relay, i-thermal resistance circuit breaker, nezinto zikagesi.Kubuye kube yinto ebalulekile yekhebula lokushisa likagesi.Iyafana nohlobo lwe-cupronickel.Ukwakheka okwengeziwe kwe-Nickel, kuba mhlophe kakhulu indawo engaphezulu.