ACB(Fastened Type, Draw out Variety) That is a next-generation kind ACB with dynamic characteristic reliability significantly improved by adopting digital overcurrent relay built-in with substantial-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? ??