The Schneider Electric A9W12263 is an Acti9 Vigi iC60 add-on residual current device (RCD) — a voltage-independent earth leakage block that clips onto the outgoing side of an iC60 MCB to provide ground-fault protection in a 2-pole (2P) configuration. Rated at 63 A with 100 mA sensitivity, Type AC (sinusoidal AC residual currents only), it operates on 230/400 V AC 50/60 Hz networks and meets EN 61009-1 and IEC 61009-1. Mounts via clip-on to DIN rail (4 x 9 mm pitches), with tunnel-type terminals accepting up to 35 mm² rigid or 25 mm² flexible cable, tightened to 3.5 N·m.
The A9W12263 is marked Obsolete by Schneider Electric.
63 A rated current and 100 mA earth leakage sensitivity: this block pairs with a 63 A iC60 MCB to protect a final subcircuit (outgoer) where the required fault protection threshold is 100 mA — typical for socket-outlet circuits or general-purpose loads where 30 mA is not mandated. It is not suitable for pulsating DC or smooth DC fault currents — those require Type A or Type B devices respectively. Voltage-independent tripping technology means the RCD operates without needing a separate power supply; it uses the fault current itself to trigger the mechanism, which improves reliability if the supply voltage is lost.
Clip-on mounting to DIN rail and screw connection to the adjacent iC60 MCB — the block is designed as a side-by-side add-on, not a standalone device. It occupies 4 module pitches (72 mm width) on the rail. Local signalling via a trip indicator provides visual confirmation of a residual current trip event, aiding fault isolation during commissioning or troubleshooting. Rated impulse withstand voltage of 6 kV (IEC 60947-2) and insulation voltage of 500 V AC — coordinates with standard distribution board surge ratings.