Line reactor for variable-speed drives
The Schneider Electric VW3A66505 is an IP20 line reactor with 0.5 mH inductance rated for 60 A continuous current. It sits between the mains supply and a variable-speed drive input to attenuate harmonic distortion, limit inrush current, and protect the drive DC bus from line transients. The 60 A rating matches the input stage of drives in the 30–37 kW range on 400 V three-phase systems — a common fit for Altivar 630 and Altivar 930 frames, though the reactor itself is a general-purpose accessory not locked to one drive series.
What the 0.5 mH / 60 A rating means for fit
The 0.5 mH inductance value is the line-side choke impedance that determines how much harmonic current it blocks. At 50 Hz the impedance is about 0.157 Ω per phase, which typically reduces input current THD from around 80–110% (no reactor) down to 35–45% on a standard 6-pulse drive — enough to meet most industrial harmonic limits without a DC choke or active filter. The 60 A continuous rating is the RMS current the reactor can carry without saturating the core or exceeding its temperature rise. That figure governs the drive's input current, not the motor output: a 60 A reactor pairs with a drive whose rated input current is at or below 60 A. Oversizing by one frame (e.g., using this on a 45 A drive) adds margin on temperature and saturation, but the inductance value stays fixed — the harmonic attenuation curve does not change with a higher current rating.
IP20 enclosure and panel integration
Mounting is via the chassis baseplate; the reactor's physical footprint and terminal arrangement follow the standard Altivar accessory pattern, so it bolts directly into the same DIN-rail or backplate footprint as the drive it serves. Verify the terminal lug size against your cable — 60 A typically calls for 16–25 mm² conductors.