The A9V14340 is an Acti9 Vigi iC60 add-on residual current device block from Schneider Electric — a 3-pole, 40 A rated, 300 mA sensitivity unit with AC-type earth leakage protection. It clips onto the downstream side of an iC60 MCB via screw connection, making it a voltage-independent, instantaneous-trip RCD module for outgoing circuits in a distribution board. Rated operational voltage is 400 V AC at 50/60 Hz per IEC 61009-1 and EN 61009-1, with an insulation voltage of 500 V AC and impulse withstand of 6 kV per IEC 60947-2. Pollution degree 3. The 300 mA sensitivity suits general-purpose earth leakage protection where a higher threshold is acceptable — typically feeder circuits or sub-distribution, not final subcircuits requiring 30 mA.
Clip-on mounting to DIN rail, 7 modular pitches of 9 mm (117 mm wide). Depth is 73.5 mm, height 91 mm. Tunnel-type terminals on the bottom accept 1…35 mm² rigid or 1…25 mm² flexible conductors; wire strip length 14 mm, tightening torque 3.5 N·m. Bottom busbar compatible. IP20 on the body, IP40 inside a modular enclosure.
