The Siemens 4EU3622-0ER00-1BA0 is a three-phase mains choke (Netzdrossel f. FU) designed for the input side of variable-frequency drives. The 0.047 mH inductance and 3.56% relative inductive drop at rated current smooth the line-side harmonics and limit inrush, protecting the drive's rectifier stage from high dV/dt and current spikes.
The 580 A maximum / 522 A rated current tells you this choke is sized for a high-power drive — think 300+ kW motor loads on a 400–500 V bus. The 3.56% voltage drop at rated current is typical for a line reactor; it's enough to reduce harmonic distortion without dragging down the DC bus under load. The 0.047 mH inductance is relatively low, which means the choke is designed for high-current, moderate-switching-frequency applications rather than high-impedance filtering. Power loss breaks into 280 W in the coil (copper losses) and 230 W in the iron core (core losses), totaling 510 W at rated load. That heat must be managed — the IP00 open-frame construction means no enclosure; it's intended for mounting inside a ventilated cabinet or on a sub-panel where airflow can carry the heat away. Class H insulation (180 °C thermal class per IEC 60085) gives a generous safety margin on the winding temperature, so it can run hot in a confined space as long as ambient stays at or below the 40 °C rated ambient temperature.
This choke is a panel-mount component, not a DIN-rail snap-on. Dimensions are 0.35 m wide, 0.321 m tall, and 0.237 m deep — roughly 14 by 13 by 9 inches — so it needs a dedicated footprint on the backplate or sub-panel. Connections are via flat-type terminals (bus-bar style), not screw clamps or spring cages; expect to bolt on copper bus bars or heavy-gauge cable lugs. The IP00 rating means no touch protection — it must be installed inside a locked or tool-accessible enclosure to meet safety codes.