The Siemens 4EU3622-1AA00-0AA0 is a 3-phase commutating choke (also called a line reactor) designed for converter input circuits. The inductance is 0.000047 H (47 µH), and the relative inductive voltage drop is 4% at the rated operating point.
This choke is a panel-mounted component with dimensions 0.35 m wide × 0.321 m high × 0.227 m deep. It is rated IP00 — no enclosure protection, so it must be installed inside a suitable electrical cabinet or enclosure that provides the required ingress protection for the environment. The main circuit connection uses flat-type terminals, typical for high-current busbar or cable lugs.
Thermal and loss characteristics
Total power loss at rated load is 467 W — 280 W in the coil and 187 W in the iron core. The thermal class is H (IEC 60085), meaning the insulation system withstands a continuous hot-spot temperature of 180 °C. Ambient temperature rating is 40 °C; derate or forced cooling may be needed if the enclosure ambient exceeds that.
DC rating note
The choke also carries a DC rated current of 686.2 A — useful if the converter operates with a DC link or if the part is being considered for a DC application. The AC rating (504 A) is the primary selection parameter for standard 3-phase converter duty.