The Schneider Electric A9R55225 is a 2-pole (2P) Residual Current Circuit Breaker (RCCB) from the Acti9 iID K series, rated for 25 A continuous current with a 30 mA earth-leakage sensitivity. Because the tripping technology is voltage-independent, the device operates without an external power supply — it will still trip on a residual fault even if the line voltage collapses, a key reliability factor for safety circuits. Rated operational voltage is 220...240 V AC at 50/60 Hz, with a rated insulation voltage of 440 V AC and an impulse withstand voltage of 4 kV. The conditional short-circuit current (Inc) is 4500 A, and the rated breaking and making capacity (Idm/Im) is 500 A. These figures define the fault-clearing capability in the downstream circuit.
Standards, approvals, and compliance
It carries the NF quality label.
Installation and wiring constraints
Terminals are tunnel-type, accepting 1...35 mm² rigid wire or 1...25 mm² flexible (with or without ferrule) for top or bottom connection. The toggle control provides manual on/off and test functionality. Electrical durability is rated at 2000 cycles under AC-1 resistive load, and mechanical durability at 5000 cycles. The device has no contact position indicator but accepts a padlocking device for lockout/tagout.
For BOM-line commitment, the active lifecycle status and standard product class mean no last-time-buy urgency, but the 30 mA Type AC RCCB is a high-volume item — lead times are generally stable through normal supply routes.