The VW3AE0660 is a sinus filter accessory for Schneider Electric's Altivar 61 Plus and Altivar 71 Plus drive series. It mounts in the floor-standing enclosure variant with separate air flows or the compact version — not the standard IP20 panel-mount drives. The sinus filter cleans up the drive output waveform, reducing motor heating and bearing currents on long cable runs.
As a sinus filter, it sits between the drive output and the motor. The key fit constraint is the enclosure destination: it's designed for the Altivar floor-standing enclosure with separate air flows or the compact version. If your drive is in a standard IP20 panel-mount enclosure, this filter won't bolt in without enclosure modification. The filter cleans up PWM carrier frequencies to reduce motor insulation stress and bearing fluting — a common retrofit concern on long motor cables over 50 metres.