The Siemens SIDAC 4EU2452-0AB00-0AA0 is a 3-phase output reactor rated for 80 A maximum continuous current and a 7000 Hz switching frequency, with an inductance of 0.15 mH. It is designed to be placed between a variable-frequency drive and the motor to smooth voltage spikes, limit the rate of voltage rise (dV/dt), and reduce bearing currents on long cable runs.
The 80 A maximum current is the thermal limit at 40 °C ambient; if your drive's output current exceeds this, the reactor saturates and loses its filtering effect. The 7000 Hz switching frequency matches the carrier frequency of many modern IGBT-based drives — a reactor rated for a lower frequency would overheat when used with a 7 kHz carrier. The 0.15 mH inductance determines the minimum motor cable length for effective dV/dt reduction; shorter runs may not need this value, longer runs may require a higher inductance. Total power loss sums to 191 W (111 W coil + 80 W iron core) which must be dissipated inside the enclosure — factor this into your panel thermal budget.
Integration notes
Mounts inside a panel — no IP rating for external use. Dimensions are 0.22 m wide by 0.21 m tall by 0.13 m deep, so it occupies roughly the footprint of a small contactor but with additional clearance for airflow. Thermal class H insulation (180 °C) gives headroom for the 191 W total loss in a confined cabinet, but forced ventilation is recommended if the enclosure is sealed.