The Schneider Electric A9KS15340BQ is a 3-pole switch disconnector from the Acti9 SW range, rated 40 A at 415 V AC in utilisation category AC-22A — meaning it handles mixed resistive and inductive loads up to that current, typical for on-load switching in distribution panels. It ships as a set of 4 units, so the kit is complete for a 4-way panel or a multi-circuit replacement run. Mounts on DIN rail, IP20 finger-safe for enclosed panel use.
This part is marked obsolete by the manufacturer. No official successor order code appears on record. If you are freezing a new design, look at the current Acti9 switch-disconnector catalogue for a parametric fit; the 3P 40 A AC-22A duty class is common across the series.
DIN-rail fixed mounting, 9 mm pitches occupied: 6. Tightening torque 3.5 N·m, wire strip length 9 mm. Rated insulation voltage 500 V AC, impulse withstand 4 kV per IEC 60947-3. Short-time withstand current 480 A for 300 ms — enough for coordination with a 40 A backup fuse or MCB in a typical distribution board.
Electrical durability 10,000 cycles, mechanical 20,000 cycles — the switch is rated for regular on-load switching, not just isolation. Ambient operating range -5 to 55 °C, storage -25 to 85 °C. Pollution degree 2, tropicalisation class 2. Toggle control, white housing. Complies with IEC 60947-3.