The SIDAC 4EU3652-0EB00-4BA0 is a 3-phase output reactor (also called an output choke) rated for 85 A maximum current and a switching frequency of 8000 Hz. It is designed for AC motor drive applications where it sits between the inverter output and the motor cable, limiting voltage spikes and reducing capacitive charging currents that can cause nuisance tripping or motor insulation stress.
The 85 A maximum current is the continuous thermal rating at the rated ambient temperature of 40 °C. This is the figure that governs whether the reactor can carry the motor's full-load current without saturating or overheating. For a 3-phase AC drive, the reactor must be sized so the motor's rated current does not exceed this 85 A limit. The 8000 Hz rated frequency is the switching frequency of the inverter, not the motor's output frequency (which can go down to 0 Hz,). A reactor rated for 8 kHz can handle the PWM carrier from a modern IGBT drive without core overheating. If your drive switches at a higher frequency, this reactor will run hotter and may need derating. Inductance is 0.5 mH, and the impedance factor (UK) is 80%. The 80% UK means the reactor's voltage drop at rated current is significant — it is a high-impedance choke, typically used to limit inrush or to provide a strong filtering effect on long motor cable runs. The thermal class H means the winding insulation is rated for 180 °C hot-spot temperature, giving margin above the 40 °C ambient. The IP00 protection class means the reactor has no enclosure — it is an open-core, open-winding component intended for mounting inside a cabinet or panel where the environment is controlled. The flat-type terminals accept busbar or cable lugs; plan for a bolted connection.
Output reactors of this class are installed on the output side of variable-frequency drives (VFDs) feeding induction motors. They are common in applications with long motor cable runs (over 50 m), multiple motors on a single drive, or where reflected-wave voltage spikes need to be attenuated to protect motor insulation. The 85 A / 0.5 mH rating suits it for drives in the 30–45 kW range on 400 VAC three-phase supply, depending on the motor's power factor and cable length.