The Schneider Electric A9N19663 is an Acti9 DPN N Vigi residual current circuit breaker with overcurrent protection (RCBO), combining a 10 A C-curve thermal-magnetic trip with integrated 30 mA Type AC earth-leakage detection in a single 1P+N module. It's a current-production part, so no lifecycle hunting — this is the active catalog number for a distribution-board outgoing circuit needing both overcurrent and earth-fault protection in one DIN-rail slot.
For industrial panels with higher fault levels, step up to a 10 kA or 15 kA rated device. Rated 10 A at 30 °C ambient, this RCBO handles a continuous load of about 2.3 kW on a 230 V single-phase circuit. The thermal-magnetic trip unit is voltage-independent for the overcurrent element, while the residual current detection is also voltage-independent per the spec — meaning it maintains earth-leakage protection even if the neutral is lost upstream.
Neutral is on the left, phase on the right — wire it in that order to keep the internal neutral disconnect aligned. The 2000 m operating altitude covers most sites without derating.
It carries full EN/IEC 61009-1 and 61009-2-1 certification, which is the harmonized standard for RCBOs in the EU.
Rated for 20,000 electrical and 20,000 mechanical cycles — that's the endurance for a distribution board that sees regular switching, not a daily-use switch. The ON/OFF indicator and contact position indicator give a visual confirmation of state without needing to meter the load side.