The Schneider Electric A9D06820 is an Acti9 iC60H RCBO — a combined residual current device and miniature circuit breaker in a single 18 mm wide module. It protects a single outgoing circuit against both overload/short-circuit (thermal-magnetic trip, C-curve, 5 to 10 x In magnetic threshold) and earth leakage (100 mA sensitivity, integrated). The 10 kA breaking capacity at 240 V AC per IEC 61009-2-2 means it can safely interrupt a fault current up to that level without welding its contacts or cascading failure upstream — a standard rating for final subcircuits in TN earthing systems.
Fit and installation
Top terminals accept up to 25 mm² rigid or 16 mm² flexible; bottom terminals accept up to 16 mm² rigid or 10 mm² flexible. Tightening torque is 3.5 N.m top, 2 N.m bottom.
The device complies with IEC 61009-1, IEC 61009-2-2, and BS EN 61009-1 — the harmonized standards for RCBOs. The limitation class is 3 (energy-limiting), meaning it restricts let-through energy under fault conditions, which aids downstream coordination. Overvoltage category II (suitable for final circuits). Tropicalisation class 2 indicates the device is treated for operation in warm, humid environments (95% RH at 55 °C).