The Schneider Electric A9D41616 is an Acti9 iDPN Vigi residual-current circuit breaker with overcurrent protection (RCBO) — a single-module device combining a 16 A thermal-magnetic MCB (curve C) and a 300 mA earth-leakage trip in one 36 mm wide clip-on housing for DIN rail. It protects a single-phase final subcircuit (1P+N, neutral left) against overload, short-circuit, and earth faults, and is rated for distribution outgoer positions per EN/IEC 61009-2-1. The 6 kA breaking capacity (Icn at 230…240 V AC, 50 Hz) is sized for residential and light commercial distribution boards where the prospective short-circuit current stays under that threshold — typical for TN or TT systems with a 63 A or smaller upstream fuse or MCB. Integrated earth-leakage protection at 300 mA sensitivity covers indirect-contact protection and suits circuits feeding fixed equipment.
Clip-on mounting on DIN rail with a 9 mm pitch between phase and neutral terminals. The 36 mm width occupies one standard modular slot. IP20 on the device body, IP40 inside the modular enclosure.