The Schneider Electric A9D73616 is an Acti9 ISPN Vigi residual current breaker with overcurrent protection (RCBO) — a single-module device that combines a 16 A thermal-magnetic MCB with integrated 30 mA earth-leakage protection in a 1P+N format.
The 16 A rated current at 30 °C is the continuous load it carries in a 30 °C ambient — above that, derate per the thermal curve. The 30 mA earth-leakage sensitivity provides personal protection against direct contact; it's the standard threshold for socket-outlet circuits in most residential and commercial codes.
Clip-on mounting on a DIN rail, 18 mm width — two 9 mm pitches — so it occupies a single modular slot in a distribution board. Neutral on the left. Wire strip length: 13 mm upstream, 11 mm downstream. Tightening torque 2 N.m both sides.