The A9V11440 is an Acti9 Vigi iC60 add-on residual current device block — 4 poles, rated 40 A with 30 mA sensitivity, Type AC earth leakage protection.
This order code is obsolete per the manufacturer's lifecycle record.
Type AC detection means it trips on sinusoidal AC earth faults only — not on pulsed DC or smooth DC waveforms, so it is correct for resistive and inductive AC loads but not for variable-speed drives, UPS-fed circuits, or EV chargers that generate DC fault content. The 400/415 V AC operational voltage covers three-phase 4-wire networks up to 400 V phase-to-phase. Pollution degree 3 (IEC 60947-2) confirms it is rated for the conductive environment inside a standard distribution board.
Panel integration
The tunnel-type terminals on the bottom accept 1…35 mm² rigid or 1…25 mm² flexible conductors; stripping length is 14 mm. Tightening torque 3.5 N·m. The trip indicator gives local visual feedback after a fault event.
