The Siemens 4EP3800-7US00 is a three-phase mains choke (line reactor) designed for variable frequency drive input circuits. It's rated for 63 A maximum AC current with a 0.22 mH inductance, operating at 400/480 V AC, 50-60 Hz.
The choke measures 0.178 m wide by 0.153 m tall by 0.12 m deep and carries an IP00 protection class — no enclosure, so it needs to live inside a panel or cabinet with adequate clearance. Connections are via flat-type terminals, which mate to busbar or cable lugs. Thermal class B per IEC 60085 means the insulation system is rated for 130 °C hot-spot, which is standard for general-purpose industrial environments.
Power loss breaks down into 54 W from the coil and 13 W from the iron core at rated conditions, for a total of 67 W. Rated ambient is 40 °C; derate above that.