The Schneider Electric A9D61820 is an Acti9 iC60N RCBO — a combined residual current breaker with overcurrent protection in a single 18 mm wide DIN-rail module. It protects a single pole plus neutral (1P+N) outgoer circuit, rated 20 A at 50 °C with a C-curve trip characteristic and integrated 30 mA earth-leakage protection. The 6 kA breaking capacity at 230/240 V AC (Icn) covers most residential and light commercial panelboards in TN earthing systems.
Clip-on mounting to DIN rail, 18 mm width (2 x 9 mm pitches). The 77.5 mm depth fits standard 45 mm grid enclosures. Tightening torque is 3.5 N·m top, 2 N·m bottom. IP20 finger-safe — intended for enclosed panel use, not washdown or outdoor exposure. Padlockable with a 4 mm shackle for LOTO lockout.
Current-production part (lifecycle stage: current). No end-of-life notice or successor announced. Compliance documentation covers AS/NZS 61009.1, IEC 61009-2-2, and IEC 61009-1 — the RCBO standards for Australia/NZ and international markets.
