It combines thermal-magnetic overcurrent protection (C-curve, 10 A at 50 °C) with integrated earth-leakage protection set at 300 mA sensitivity. The 10 kA breaking capacity (Icn at 240 V AC, per IEC 61009-1) handles fault currents typical of commercial and light industrial outgoing circuits.
The 10 A rated current at 50 °C is the continuous load the RCBO can carry without tripping — derate further if ambient exceeds 50 °C. The 300 mA earth-leakage threshold is a protection level for equipment rather than personnel — it catches insulation faults and ground leaks without nuisance-tripping on capacitive leakage from long cable runs or filters. The 2-pole form factor (switching both line and neutral) with neutral on the left is standard for TT, TN, and IT earthing systems, so it drops into most distribution boards without rework. IP20 (finger-safe terminals) and IP40 within a modular enclosure mean it is intended for enclosed distribution boards, not wet or dusty environments. The 77.5 mm depth fits standard consumer unit and panelboard depths — verify door clearance if the board has a shallow cover.
Certified to IEC 61009-1, IEC 61009-2-2, and AS/NZS 61009.1 — the core standards for RCBOs combining overcurrent and residual current protection. Suitable for isolation (marked with the isolation symbol).