It adds 300 mA AC-type earth leakage protection to a 3-pole 63 A circuit, tripping instantaneously when residual current exceeds that threshold.
Rated at 63 A (In) and 300 mA sensitivity, this block is sized for a subfeed or outgoing circuit where the upstream MCB is already 63 A — the add-on does not increase the interrupting rating, it adds leakage detection. Voltage-independent trip technology means the block operates without needing a separate power supply — it uses the line energy to trip.
Designed to IEC 61009-1 and EN 61009-1 (RCCB/MCB combination standards), with a rated insulation voltage of 500 V AC and rated operational voltage of 230/415 V AC at 50/60 Hz. Impulse withstand voltage is 6 kV per IEC 60947-2, and pollution degree 3 per the same standard. IP20 rated for the block body; IP40 in a modular enclosure.
Clip-on mount to DIN rail, 7 x 9 mm pitch modules wide (117 mm). The block connects to the iC60 MCB via screws — no busbar required, but the mechanical interlock is specific to the Vigi iC60 range.
The A9W14363 is marked obsolete by Schneider Electric. Any requalification for a substitute should account for the mechanical fit to the iC60 MCB and the AC-type trip characteristic.