Mains choke for variable-frequency drives
The Siemens 4EU2752-0UB00-0AA0 is a three-phase mains choke (line reactor) designed for the input side of a variable-frequency drive. It carries a maximum AC current of 280 A at 60 Hz and a rated operational current of 252 A, with a rated voltage of 400/480 V AC at 50-60 Hz. Rated for a 40 °C ambient and built to thermal class H per IEC 60085, the choke can handle sustained overloads common in motor-drive applications. The IP00 open-frame construction means it is intended for installation inside a panel or enclosure that provides its own ingress protection — not for standalone outdoor or washdown locations.
Integration notes
The 0.27 m width, 0.248 m height, and 0.208 m depth define the envelope for panel layout. The 172 W coil loss plus 67 W iron core loss (239 W total at rated conditions) must be factored into the enclosure thermal budget.
