ACB(Set Variety, Draw out Type) It is a future-technology type ACB with dynamic characteristic trustworthiness significantly improved by adopting electronic overcurrent relay in-built with significant-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?