The Siemens 4EU2752-6UB00-0AA0 is a mains choke (Netzdrossel f. FU) designed for the input side of a variable frequency drive. It's a 3-phase, 500V AC reactor rated at 144A continuous with a maximum of 160A, and an inductance of 0.23 mH.
This is an IP00 open-frame choke, so it's intended for inside a panel or enclosure — no washdown rating, no outdoor duty. It connects via flat-type terminals, which means you're landing ring or fork lugs on a bus bar or terminal block, not plugging into a spring cage. The footprint is 0.27m wide by 0.248m tall by 0.208m deep — check your panel depth before committing; 208 mm is deeper than a standard 200 mm back panel, so it may need a deeper enclosure or a standoff.
Thermal and electrical limits
Rated for a 40°C ambient and Class H insulation (180°C thermal class per IEC 60085), so it handles sustained motor drive duty without cooking. Total power loss breaks down to 179W in the coil and 68W in the iron core — that's 247W of heat you need to vent from the enclosure. At 50 Hz line frequency, the 0.23 mH gives you the 4% impedance; if you're running 60 Hz, the inductive reactance scales up proportionally, so the voltage drop and harmonic attenuation will be higher.