The Schneider Altivar VW3SKLN240H150 is a 3-phase line choke rated for 240 A continuous with 0.15 mH inductance, designed to reduce current harmonics on the input side of a variable-frequency drive. It sits between the mains supply and the drive's rectifier, smoothing the current waveform and limiting harmonic distortion to meet EN 50178 requirements. The IP00 open-frame construction means it mounts inside a panel or enclosure — no touch protection on the windings, so the cabinet door must interlock or be tool-accessible.
The 240 A rated current (In) governs the maximum continuous drive input current this choke can handle without saturating the core or exceeding its thermal rise. The 0.15 mH inductance sets the impedance at line frequency.