What this RCBO does in the panel
The Schneider Electric A9D33725 is a 3P+N Acti9 DPN Vigi RCBO — a combined overcurrent and earth-leakage protection device in a single module. The integrated 30 mA earth-leakage sensitivity covers personnel protection in final circuits per IEC 60364. Breaking capacity is 6000 A Icn at 380...415 V AC 50/60 Hz, conforming to EN/IEC 61009-2-1, which covers most residential and light-commercial distribution boards in the common fault-current range.
Mounting and integration — DIN rail clip-on
Clip-on mounting to DIN rail (EN 60715). The 3P+N device occupies 10 modules of 9 mm pitch, so it needs 90 mm of rail width. Connection pitch is 18 mm between phases and 9 mm between phase and neutral. Tunnel-type terminals accept 0.75...16 mm² rigid or 0.33...10 mm² flexible cable; tightening torque is 2 N·m. Wire strip length is 15 mm.
IP20 rated conforming to IEC 60529; IP40 in a modular enclosure. Overvoltage category III per IEC 60364.
