What this mains choke does — and the ratings that matter
Its job is to smooth line current, limit harmonic distortion, and reduce voltage notching — which directly protects the drive's DC bus capacitors and extends rectifier life. Rated for 81.9 A continuous with a 91 A maximum at 60 Hz, it's sized for a drive that draws around 80 A full-load — think a 45–55 kW motor on 400 V three-phase. The 0.31 mH inductance is fixed; no taps, no adjustment.
Mounting and thermal reality — IP00 and Class H
This is an IP00 component — no enclosure, no finger-safe cover. It's meant to be bolted inside a cabinet, on a mounting plate or chassis, with the flat-type terminals accepting busbar or cable lugs. The 0.225 m width, 0.21 m height, and 0.176 m depth are the physical envelope; plan for at least 50 mm clearance around it for airflow. Thermal class H means the winding insulation is rated for a 180 °C hot-spot — it can run hot, but the ambient temperature rating of 40 °C is the design point. At full load the coil dissipates 134 W and the iron core another 55 W, so that's 189 W of heat to vent out of the enclosure.