What This Choke Does in Your Converter Line
The Siemens 4EU3022-6BA00-0AA0 is a 3-phase commutating choke rated for converter duty — it limits the rate of current rise (di/dt) during thyristor commutation, protecting the converter's semiconductors from overcurrent stress. The 315 A AC maximum current (at 50 Hz, 500 V) and 283.5 A AC rated operational current tell you the continuous load it can carry in a 40 °C ambient; push past that and the thermal class H insulation (IEC 60085) gives you a 180 °C hot-spot ceiling before the winding degrades. The 0.000087 H inductance with a 4 % relative inductive voltage drop is sized to keep commutation notches within the converter's tolerance — too low and the thyristors see a current spike, too high and the voltage drop eats into your DC bus.
Mounting and Integration — IP00 Means an Enclosure
IP00 protection class means the choke has no housing — the windings and core are exposed. It must be mounted inside a panel or cabinet that provides the environmental seal. The flat-type terminals accept busbar or cable lugs; plan for a bolted connection rather than a spring-clamp. Footprint is 0.3 m wide by 0.269 m tall by 0.211 m deep. The 220 W coil loss plus 110 W iron core loss total 330 W of heat to vent — factor that into your cabinet's thermal budget or you'll cook the 40 °C ambient rating.