ACB(Preset Type, Draw out Kind) That is a upcoming-technology style ACB with dynamic attribute trustworthiness significantly improved by adopting digital overcurrent relay built-in with high-precision A/D conversion circuit useful for measuring devices.S? d?ng cho h? th?ng ?i?n h? th? khi ngu?n c?p ph? t?i b? gián ?o?n B? chuy?n m?ch t? ??ng, giá