The Siemens 4EU3022-0ES00-0AA0 is a three-phase mains choke (line reactor) designed for use with variable-frequency drives. It smooths the input current, reduces harmonic distortion, and protects the drive's DC bus from line transients. Rated for 165 A continuous with a maximum of 183 A at 60 Hz.
Operating voltage is 460 V AC at 60 Hz. Thermal class H insulation. IP00 enclosure requires cabinet installation. Total power loss is 385 W (209 W coil + 176 W iron core) at rated conditions.
Dimensions are 0.300 m wide, 0.269 m tall, 0.221 m deep — roughly 12 x 10.6 x 8.7 inches. It's a substantial component; plan for a dedicated mounting footprint on the panel backplate or a sub-panel. Connections are via flat-type terminals (bus-bar style), not ring lugs or spring cages. You'll need to mate with a flat bus bar or a compression lug rated for the current.
