ACB(Fastened Kind, Draw out Variety) This is the subsequent-era form ACB with dynamic attribute trustworthiness greatly improved by adopting electronic overcurrent relay built in with high-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,