The VW3GB661330F1 is a 30 A RFI filter from the Schneider Electric Altivar accessory family, designated R-FP U90. It sits between the line supply and a variable-frequency drive to attenuate conducted electromagnetic interference.
What the 30 A Rating Means for Fit
The 30 A continuous rating matches the input current of a mid-range Altivar drive. The filter's impedance and insertion loss curve are tuned for the switching frequencies of IGBT drives.