The Schneider Electric A9V19463 is an Acti9 Vigi iC60 add-on residual current device — 4P, rated 63 A, AC type, selective time delay, 1000 mA sensitivity. The 1000 mA threshold and selective delay mean it coordinates downstream: it lets transient earth faults ride through and only trips on sustained leakage above that level, keeping nuisance trips off the main incomer. Voltage-independent tripping means it clears a ground fault even if the phase voltage collapses — no auxiliary supply needed.
Clip-on mount to standard DIN rail. Width 135 mm (7 x 9 mm pitches), depth 73.5 mm, height 91 mm. Bottom tunnel terminals accept 1...35 mm² rigid or 1...25 mm² flexible; tighten to 3.5 N·m. Strip 14 mm. IP20 on the device body; IP40 inside a modular enclosure. Comb-busbar compatible on the bottom side for daisy-chaining neutrals or phases across a row of Vigi units.
