The Schneider Electric A9Q61325 is an Acti9 Vigi iC60 add-on residual current device (RCD) — 3-pole, rated 25 A, with 30 mA earth-leakage sensitivity, Type A-SI (Super Immunised), for 400…415 V AC networks at 50/60 Hz.
The 30 mA sensitivity catches earth faults that could otherwise go undetected by an MCB alone — standard for personal protection against indirect contact. Voltage-independent tripping means the RCD operates even if the phase voltage collapses — no auxiliary supply needed. Instantaneous time delay means it clears faults as fast as the internal solenoid allows, which is the default for most distribution boards unless you need selectivity with a delayed upstream RCD. Rated operational voltage is 400…415 V AC — standard three-phase line-to-line for European low-voltage networks.
This is an outgoer device — it sits downstream of the main switch or incoming breaker, protecting a final subcircuit.
