As data centers grow and power loads increase, IEC‑compliant switchboards are becoming a key trend for ensuring safe and reliable power distribution. This session introduces Japan‑built IEC switchboards, outlines IEC 61439 essentials, and compares arc‑flash mitigation methods. It also highlights emerging DC power distribution trends and explains how the next‑generation ACB Emax 3 enhances protection, digital monitoring, and predictive maintenance to improve operational efficiency.