The Siemens 4EU2422-0EE00-0AA0 is a three-phase commutating choke (line reactor) for converter input or DC-link circuits. It carries a rated current of 64.8 A at 520 V AC and handles a maximum of 72 A at 50 Hz, with a rated inductance of 0.53 mH. IP00 means no enclosure protection — this choke is designed for mounting inside a cabinet, typically on a mounting plate or chassis within a converter panel. The flat-type terminals accept busbar or cable lugs, not spring-cage or screw-clamp connectors.
Electrical and thermal ratings
Rated for continuous duty at 40 °C ambient with Class H insulation per IEC 60085 — that's a 180 °C thermal class, giving headroom for overloads and high ambient conditions inside a sealed cabinet. Total power loss at rated load is 194 W in the coil plus 39.5 W in the iron core, so the panel designer needs to account for roughly 234 W of heat dissipation from this single component. The DC-rated current of 88.2 A is higher than the AC figure — the choke's saturation current is the same in either case, but the DC rating reflects the lower RMS heating in a DC-link application. If you're using this in a regenerative drive or a DC bus with active front end, the DC rating is the one to watch.