The Schneider Electric A9V82263 is an Acti9 Vigi iC65 ELM add-on residual current device (RCD) — a voltage-independent, 2-pole unit rated at 63 A with 300 mA AC-type earth-leakage sensitivity.
Mounts via clip-on to a standard DIN rail, occupying 4 module pitches (72 mm wide, 101 mm tall, 73.5 mm deep). Rated for -5 to 60 °C ambient operation, so it handles warm cabinet interiors near the top of a distribution board.
The 300 mA AC-type sensitivity is instantaneous (no time delay), designed for general-purpose earth-leakage protection on outgoing circuits where equipment leakage is low and nuisance tripping is unlikely. Voltage-independent tripping means it clears a fault even if the line voltage collapses — a safety advantage over electronically latched RCDs. Rated for 230/400 V AC 50/60 Hz networks, compliant with GB 16917.21.