The Siemens SIDAC 4EU2752-0EH00-4BA0 is a 3-phase output reactor (also called an output choke) designed to sit between a variable-frequency drive and the motor. Its job is to limit the rate of voltage rise (dV/dt) and reduce capacitive coupling currents in long motor cables, which protects the motor winding insulation from reflected-wave damage — a common failure mode on drives with fast-switching IGBTs. Rated for a maximum continuous current of 84 A at 750 Hz, with a switching frequency of 8 kHz and an inductance of 0.2 mH per phase. The 8 kHz switching-frequency rating means it is matched to modern IGBT drive outputs that switch at that rate — not a legacy 2–4 kHz drive. The 0.2 mH inductance is relatively low, sized for motor cable runs up to roughly 50–100 m depending on the cable type and drive; it smooths the edges without dropping excessive voltage under load. Thermal class H insulation (180 °C rated hot-spot) and a 40 °C ambient rating. Total power loss sums to 291 W (161 W coil + 130 W iron core), which must be dissipated in the enclosure — factor that into your panel thermal budget. IP00 means no ingress protection; mount it inside a clean, dry cabinet away from conductive dust or moisture.
Dimensions: 0.27 m wide × 0.24 m high × 0.18 m deep. The main circuit connection uses flat-type terminals — expect bus-bar or large-crimp lugs, not screw-clamp wire terminals. Plan for adequate bending radius on the incoming and outgoing power cables. IP00 and no DIN-rail mount; it is a chassis-mount component. Bolt it to a vertical panel backplate with clearance around all sides for airflow.