The Schneider Electric A9V31340 is an Acti9 Vigi iC60 add-on residual current device (RCD) — a three-pole, 40 A, 30 mA sensitivity block with Type A-SI (Super Immunised) earth leakage protection.
The A9V31340 is obsolete per the manufacturer. No last-time-buy window remains open; expect to source from surplus or broker channels.
Rated 40 A (In) and 400 V AC (Ue) per IEC/EN 61009-1, this block is sized for a 3P outgoing circuit up to that current — typical for a sub-distribution board feeding a three-phase machine or a lighting/small-power load group. The 30 mA sensitivity, combined with Type A-SI (super-immunised) characteristic, means it tolerates pulsed DC earth faults and high-frequency leakage from VFDs or switched-mode supplies without nuisance tripping — a real advantage on mixed-load panels where standard Type A would false-trip. Voltage-independent tripping means the RCD operates even if the line voltage collapses, a safety requirement for exposed final circuits.
Clip-on mount to DIN rail. Occupies 7 x 9 mm pitches = 117 mm width. Depth is 73.5 mm. Tunnel-type terminals bottom-side accept 1…35 mm² rigid or 1…25 mm² flexible, stripped 14 mm, torqued to 3.5 N·m. IP20 body, IP40 inside a modular enclosure. Comb-busbar compatible from the bottom. The trip indicator gives local visual confirmation of RCD operation.
Standards & Environment
Designed to IEC 61009-1 / EN 61009-1. Pollution degree 3 per IEC 60947-2. Rated impulse withstand voltage 6 kV (Uimp). Insulation voltage 500 V AC (Ui). Withstands 8/20 µs surge currents up to 3000 A. Ambient operating range -25…60 °C, storage -40…85 °C.