The SIDAC 4EU2452-0EH00-4BA0 is a 3-phase output reactor rated for 480 V AC, with a maximum continuous current of 25 A and a rated inductance of 0.0002 H. It is designed to sit between a variable-frequency drive and the motor, smoothing the PWM voltage spikes that cause winding stress and bearing currents. The 8 kHz switching frequency matches the typical IGBT carrier of modern drives.
The 25 A maximum current rating sets the drive size this reactor can support. The 0.0002 H inductance provides impedance to limit the rate of voltage rise from the drive output, protecting motor insulation in longer cable runs. Thermal class H insulation means the reactor can handle the internal heat rise from the combined 110 W coil loss and 79.4 W iron-core loss without derating at a 40 °C ambient. The 8 kHz rated switching frequency matches the carrier frequency of most general-purpose drives. If your drive runs a higher carrier, expect additional core heating and may need to derate the reactor current.