ACB(Preset Type, Draw out Kind) That is a upcoming-technology style ACB with dynamic characteristic trustworthiness greatly improved by adopting digital overcurrent relay built-in with high-precision A/D conversion circuit used for measuring devices.– ?i?u ch?nh th?i gian chuy?n m?ch tr?c ti?p trên m?t c?a b? ?i?u khi?nB? ?i?u khi?n ATS C25 : At