The Schneider VW3A66470 is a ferrite core accessory designed for Altivar variable-speed drives in frame sizes S1 through S4. It clamps around motor cables to suppress conducted EMI, keeping the drive installation within EMC emission limits without adding a separate output filter.
The ferrite core is a passive component — no wiring, no power draw, no lifecycle wear beyond the mechanical snap action. If the original core in a legacy drive cabinet has cracked or gone missing, this exact part restores the original EMC signature without re-qualifying the panel.