The Schneider Electric A9R11425 is a 4-pole residual current circuit breaker (RCCB) from the Acti9 iID range, rated at 25 A with 30 mA earth-leakage sensitivity. The 30 mA trip threshold is the standard for personal protection against indirect contact in residential and commercial final circuits — catches leakage currents that could pass through a human body.
Rated 25 A continuous (In) per EN/IEC 61008-1. The 30 mA sensitivity (IΔn) is the standard touch-protection threshold.
Neutral on the left. Terminals accept 1...35 mm² rigid or 1...25 mm² flexible; strip 14 mm, torque to 3.5 N.m. IP20 body, IP40 inside a modular enclosure — fine for dry indoor panels. Padlocking provision for lockout/tagout.
This is a standard catalogue item in the Acti9 family.