The Schneider Electric A9W11363 is a Vigi iC60 add-on residual current device (RCD) from the Acti9 range, rated 63 A with 30 mA earth-leakage sensitivity, Type AC.
The 63 A [In] rated current and 30 mA earth-leakage sensitivity, Type AC, mean this block protects a 3-phase outgoing circuit against sinusoidal AC earth faults up to 30 mA — standard for general-purpose socket-outlet and lighting circuits in commercial or light-industrial panels. The 400/415 V AC rated operational voltage (EN/IEC 61009-1) suits 3P networks up to 415 V line-to-line. Voltage-independent tripping means it operates without an external power supply, relying on the fault current itself. The 6 kV impulse withstand voltage (Uimp) covers typical surge coordination for distribution boards.
Clip-on mounting to DIN rail, 7 module pitches wide (9 mm each, so 63 mm). Tunnel-type terminals accept 1…35 mm² rigid or 1…25 mm² flexible cable; tighten to 3.5 N·m. IP20 on the device body, IP40 in a modular enclosure. Ambient operating range -5…60 °C; storage -40…85 °C. The trip indicator gives local signalling after a fault.