The VW3A5218 is a sinus output filter for Schneider Altivar Process variable-speed drives. It sits between the drive output and the motor cable, converting the PWM waveform into a near-sinusoidal voltage to reduce motor insulation stress, bearing currents, and radiated noise on long cable runs. Rated at 75 A continuous with a 2 kHz switching frequency and 70 Hz maximum output frequency, it's sized for a motor load in the 37–45 kW range on a 400 V supply — typical for pumps, fans, or compressors in a process line.
The 75 A nominal current carries a 60-second overload capability of 1.5× nominal — enough to ride through a motor start or a momentary load spike without tripping. That overload window matches the typical Altivar Process drive's current-foldback timing. Thermal losses are 500 W at 115 °C case temperature. In an IP00 open-frame package, that heat goes into the enclosure air — plan for forced ventilation or derating if the panel ambient exceeds 45 °C operating limit. Pollution degree 2 per EN 50178 means it's rated for normal industrial environments with non-conductive dust — no condensation. Altitude derating starts at 1000 m: 1 % current reduction per 100 m above that. At 2000 m, expect 90 A capability to drop to about 81 A. Shock and vibration ratings (15 gn / 11 ms shock, 1 gn vibration 13–200 Hz) are standard for panel-mounted gear in industrial machinery.
Terminal-block connection, IP00 open-frame — mount it on the backplate or DIN rail inside the drive cabinet, close to the drive output to keep the unfiltered cable run short. The 500 W heat load needs clearance around the fins; don't stack it against other heat sources. Ambient operating range is -10 to 45 °C; storage from -40 to 65 °C. Relative humidity up to 95 % non-condensing is fine for a climate-controlled panel room.
UL 508 listed — the listing covers the filter as a component for industrial control panels, which simplifies panel certification in North American installations.