Line choke for Altivar drives — 280 A, 0.125 mH
The Schneider Altivar VW3SKLN280H125 is a three-phase line choke rated for 280 A continuous current with 0.125 mH inductance, designed to reduce current harmonics on the input side of Altivar variable-frequency drives. It handles a 1.5x overload for 60 seconds, which covers motor starting inrush without saturating the core. The IP00 open-frame construction means it mounts inside a panel or enclosure — not in a washdown or outdoor location. Thermal losses of 138 W need to be factored into the enclosure cooling budget.
This part is classified as Obsolete by the manufacturer. No direct successor order code is listed.
Integration notes
Dimensions are 318 mm wide, 365 mm tall, and 200 mm deep — a substantial footprint that needs a dedicated mounting plate or DIN-rail bracket (the choke is not a snap-on device). The 3-phase power connections are bolted terminals sized for the 280 A rating; plan for cable lugs and a torque wrench during installation. Compliance to EN 50178 (electronic equipment for use in power installations) confirms it meets the insulation and clearance requirements for industrial drive panels.