Schneider VW3A31407 – 380 → 500 V EMC Filter 3 Phase

Altivar ATV31/ATV21 – EMC Input FiltersA range of additional EMC input filters for the variable speed drives Altivar ATV31 and ATV21.Additional filters for inverters can only be used on TN (neutral connection) and TT (neutral to earth) type systems.Filters for a three-phase supply voltage