The Schneider Electric A9Z82463 is a 4-pole residual current circuit breaker (RCCB) from the Acti9 iID family, rated 63 A with 100 mA earth-leakage sensitivity and Type A protection. 63 A is the continuous load it carries in a 380...415 V AC 50/60 Hz network — sized for a main incoming supply or a large sub-feed in a commercial or industrial distribution board. The 100 mA sensitivity means it trips on ground faults above that threshold, which is typical for circuits where a 30 mA device would nuisance-trip (e.g., lighting, pumps, or HVAC equipment with natural leakage). Type A protection covers sinusoidal AC and pulsating DC residual currents — the standard for most modern electronic loads like VFDs, UPS systems, and switched-mode power supplies. The instantaneous trip time (no intentional delay) means it clears a ground fault as fast as the internal solenoid can move — typically within a few tens of milliseconds — so it provides the fastest possible disconnection for personnel protection when used within its rated conditions. Voltage-independent tripping technology means the RCCB does not need a separate power supply or neutral-to-earth voltage to detect a fault; it uses the fault current itself to energize the trip coil, so it remains functional even if the supply voltage drops or is lost upstream.
Clip-on mounting to a DIN rail, 72 mm wide (4 modules at 18 mm each), 73 mm deep, 91 mm tall. Neutral is on the left — verify busbar orientation if you are replacing an existing RCCB in a pre-wired board.
Rated conditional short-circuit current of 10 kA at the operational voltage, with an impulse withstand of 6 kV and an 8/20 µs surge capacity of 250 A. Compliance documentation (declaration of conformity, CE marking) is available with the product; RoHS and REACH declarations are standard for the Acti9 range.