CuNi2 resistance alloy ndi mtundu wa copper nickel binary alloy. Imakhala ndi kutentha kocheperako komanso kutentha kwake kokwanira ndi 250 ° C. Aloyiyi imagwiritsidwa ntchito makamaka popanga otsika ma voltage circuit breaker, bulangeti lamagetsi lotsika, kutentha kwamafuta ndi zida zina zamagetsi zotsika. Ndipo amagwiritsidwanso ntchito popanga kutenthachingwekwa bulangeti yamagetsi yakunyumba.