ACB(Preset Kind, Draw out Variety) This can be a following-technology kind ACB with dynamic characteristic reliability enormously enhanced by adopting electronic overcurrent relay built-in with high-precision A/D conversion circuit used 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