What the rating means
The F204 A-63/0,03-L: The 63 A rating on this RCCB means it protects circuits up to that continuous load — typical for sub-distribution boards feeding multiple final circuits in commercial or light industrial panels. The 0.03 A (30 mA) residual sensitivity catches earth faults that could cause shock or fire, which is the standard threshold for personal protection in most IEC 60364 installations.
