The Schneider Electric A9D60620 is an Acti9 iDPN Vigi residual-current circuit breaker (RCBO) — a single-module device combining overcurrent protection and earth-leakage detection in one 1P+N package. Rated 20 A with a B-curve trip characteristic (magnetic threshold 3–5× In) and 100 mA earth-leakage sensitivity, it protects a final subcircuit against overload, short-circuit, and ground faults in a single DIN-rail slot. The 6 kA Icn breaking capacity at 230 V AC (per EN/IEC 61009-2-1) covers the majority of residential and light commercial distribution boards where the prospective short-circuit current stays under that threshold. Limitation class 3 means it lets through less fault energy than a standard MCB, reducing stress on downstream wiring and connected loads.
Clip-on mounting to DIN rail, 4 pitches at 9 mm (36 mm total width). Neutral left; phase connects top or bottom. Terminal accepts 1–16 mm² rigid or 1–10 mm² flexible; strip 15 mm, torque 2 N·m. IP20 rated on the front face; IP40 inside a modular enclosure.