The Siemens 4EU2722-0AN00-4BA0 is a 3-phase commutating choke for converter input. It operates at 400 V AC, 95 A rated current, 105 A maximum. A 2.86% drop is a standard value for a line reactor — it provides meaningful harmonic attenuation without dropping so much voltage that the drive's DC bus undervoltages under load.
Where it fits — panel and thermal considerations
This is an open-frame (IP00) component. Dimensions are 0.27 m wide, 0.248 m high, 0.187 m deep. Thermal class H insulation per IEC 60085 means the winding can withstand a 180 °C hot-spot temperature. The total power loss is the sum of the coil loss (169 W) and the iron-core loss (99 W), so 268 W must be dissipated inside the panel. That is a significant heat load — forced ventilation or a properly sized cabinet is required to keep the ambient temperature at or below the 40 °C rating. The main circuit connection is via free cable endings, so the installer provides the ring terminals or ferrules. This is typical for a choke of this class — no pre-made connector, just stripped and tinned leads that land on a terminal block or the converter's input terminals.