Schneider Electric A9DC8620 Acti9 iCV40H — RCBO with integrated earth-leakage protection
The A9DC8620 is a Schneider Electric Acti9 iCV40H residual current circuit breaker with overcurrent protection (RCBO), combining a 20 A thermal-magnetic trip (C-curve, 5–10× In magnetic tripping limit) with integrated 300 mA earth-leakage protection in a single 1P+N module. It is rated for 10 000 A Icn breaking capacity at 230 V AC, 50/60 Hz, per EN/IEC 61009-2-1, and carries Limitation Class 3 for energy let-through under short-circuit conditions. This is a current-production part (lifecycle stage: current) with VDE and EAC quality labels, designed for distribution outgoer circuits in residential and commercial final-distribution boards. It clips onto a DIN rail (4 x 9 mm pitches wide) and occupies a single modular width, with the neutral on the left and tunnel-type terminals accepting 1–16 mm² rigid or 1–10 mm² flexible conductors.
The 20 A rated current with C-curve (5–10× In magnetic trip) means this RCBO is sized for general-purpose circuits with moderate inrush — lighting banks, socket outlets, small motor loads — where the short magnetic delay avoids nuisance tripping on startup. The 300 mA earth-leakage sensitivity is a protection level typically specified for circuits where 30 mA is too sensitive (e.g., fixed equipment with natural leakage) but where personnel protection is still needed; it is not a 30 mA life-safety device. The 10 kA breaking capacity at 230 V AC (Icn per EN/IEC 61009-2-1) tells you this device can safely interrupt a fault current up to 10 000 A without welding its contacts or rupturing the enclosure — sufficient for most residential and light commercial distribution boards where the prospective short-circuit current at the outgoer is below that threshold. Limitation Class 3 means it restricts let-through energy under short-circuit, reducing stress on downstream wiring and connected equipment.
Tunnel-type terminals accept 1–16 mm² rigid or 1–10 mm² flexible wire; strip length is 14 mm; tightening torque is 2 N·m top or bottom. IP20 (finger-safe) per IEC 60529 for the device body; IP40 for the modular enclosure when installed in a panel. The toggle control provides ON/OFF and fault indication locally. Operating altitude is rated to 2000 m; relative humidity tolerance is 95% at 55 °C.