The A9DC5910 is a 3P+N residual current breaker with overcurrent protection (RCBO) from the Acti9 iC60 family. It combines a C-curve MCB (10 A rated current, 6 kA Icn at 400/415 V) with an integrated 10 mA earth-leakage module in one 54 mm wide DIN-rail unit. The 10 mA sensitivity catches leakage paths that a 30 mA device would miss — think medical equipment, wet areas, or circuits where a lower trip threshold is specified for personnel protection.
Clip-on mount to DIN rail, 6 x 9 mm pitches wide (54 mm). Neutral on the left. Torque to 2.5 N·m. IP20 finger-safe — panelboard use, not washdown.
