The Schneider Electric A9D15825 is a 1P+N Acti9 iC60H RCBO — a residual current breaker with overcurrent protection that combines a 25 A thermal-magnetic MCB (C-curve) and a 100 mA earth-leakage module in a single 18 mm wide DIN-rail unit. Rated Icn of 10,000 A at 240 V AC, 50/60 Hz, it clears fault currents up to that level without external fusing — limitation class 3 means it lets through less energy than a standard breaker, which helps downstream selectivity in a distribution board. The integrated earth-leakage protection (100 mA sensitivity) covers personnel and equipment against ground faults on TN earthing systems, and the device is marked suitable for isolation per IEC 61009-1 and IEC 61009-2-2.
Depth of 77.5 mm and height of 110 mm fit within a standard distribution board enclosure; the toggle actuator and ON/OFF indicator remain visible after panel wiring. Tightening torque: 3.5 N·m top, 2 N·m bottom. Wire stripping length 14 mm top, 13 mm bottom — these values govern gland-plate planning and torque-driver setup. IP20 finger protection; padlockable with a Ø 4 mm padlock for lockout/tagout.
25 A rated current at 50 °C ambient — the thermal-magnetic trip element is calibrated for that temperature; derate per the manufacturer's curve if installed in a higher ambient (e.g., a sealed enclosure). Limitation class 3 (energy let-through ≤ 15% of a class 1 breaker at the same rating) reduces arc-flash energy and improves coordination with downstream MCBs. Electrical durability of 5,000 cycles and mechanical durability of 20,000 cycles — the electrical figure governs switching under load; the mechanical figure covers routine on/off for isolation. For a final-circuit RCBO switched infrequently, both exceed typical service life.