The VW3AE0676 is a sinus filter from Schneider Electric's Altivar range, designed as a protection accessory for Altivar 61 Plus and Altivar 71 Plus drives mounted in floor-standing enclosures with separate air flows or compact versions. Its job is to smooth the PWM output from the drive into a sinusoidal waveform, which reduces motor heating, bearing currents, and reflected-wave stress on long cable runs — a common concern on conveyor or fan applications where the motor sits 50+ meters from the drive.
This is not a generic output reactor — it is a sinus filter, which means it includes both inductance and capacitance to actively shape the drive output. That makes it physically larger and heavier than a simple dV/dt reactor, and it is specifically dimensioned for Altivar 61 Plus and 71 Plus drives in floor-standing cabinets. If your drive is in a wall-mount IP54 enclosure, this filter will not fit the gland plate or the mounting footprint; it is sized for the taller, ventilated floor-standing frame. The filter mounts externally between the drive output terminals and the motor cable, so plan for additional panel space and cable routing clearance.