The Schneider Electric A9D83632T is an Acti9 ISPN Vigi RCBO — a residual current breaker with overcurrent protection, combining a 32 A thermal-magnetic MCB and a 30 mA earth-leakage module in a single 18 mm wide, 1P+N package. The 30 mA earth-leakage sensitivity provides additional protection against electric shock for people and equipment, integrated into the same unit so no separate RCD is needed downstream.
It avoids nuisance trips from inrush that a B-curve would catch, while still clearing fast enough for most final circuits. The 18 mm width per pole means this RCBO fits a standard modular enclosure — two 9 mm pitches. In a crowded panel, that single-module width saves rail space compared to a separate MCB + RCD pair. Tunnel-type terminals accept up to 25 mm² rigid upstream and 16 mm² rigid downstream, with a tightening torque of 3.5 N.m upstream and 2 N.m downstream. That covers standard final-circuit cable sizes through 4 mm² or 6 mm² with headroom. IP20 finger protection means it's suitable for installation inside a distribution board or enclosure — not for wet or outdoor locations without an outer cabinet.
The device is specified as an outgoer — it protects a final subcircuit leaving the distribution board. Clip-on mounting to DIN rail or chassis means no tools needed for installation or removal — useful for panel builders wiring multiple units in a row and for MRO swaps. Padlockable with a 4 mm diameter padlock for lockout/tagout during maintenance.
Compliance with AS/NZS 61009.1 means it's certified for Australian and New Zealand installations — the standard for combined RCD/MCBs in those markets. That's the primary approval to check if you're sourcing for a project under that jurisdiction.