ACB(Set Sort, Attract out Form) This is the next-generation kind ACB with dynamic characteristic reliability tremendously improved by adopting digital overcurrent relay built in with large-precision A/D conversion circuit utilized for measuring instruments.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,