The Schneider Electric A9Q04225 is an Acti9 Vigi iC60 add-on residual current device — a 2-pole, 25 A rated, 300 mA sensitivity, AC-type, instantaneous-trip RCD that clips onto the outgoing side of a compatible Acti9 iC60 MCB. It's a voltage-independent design, so it trips on residual current even if the phase voltage collapses, which matters for fault isolation in mixed-load panels.
Mounts via clip-on onto DIN rail (3 x 9 mm pitches = 27 mm wide). The bottom tunnel terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible conductors, with a 14 mm strip length and 2 N·m tightening torque. IP20 on the body, IP40 inside a modular enclosure — fine for dry indoor panel environments, not for washdown zones.
Lifecycle status is Active per Schneider's current portfolio. This SKU is still in standard production and specified into new BOMs.
