What This Output Reactor Does in Your Drive System
The SIDAC 4EU2452-0EJ00-0AA0 is a 3-phase AC output reactor rated for 41 A maximum current and an 8 kHz switching frequency. It's designed to sit between a variable-frequency drive and the motor, smoothing the PWM waveform to reduce voltage spikes and motor insulation stress. The 0.08 mH inductance and 10.2% voltage drop (UK) are sized for drives running at 350 V line voltage, with a thermal class H winding that handles the 115 W coil loss plus 90 W iron loss at 40 °C ambient. Flat-type terminals mean you'll need a busbar or cable lug connection — no screw-clamp convenience here.
Sizing and Fit: What the Ratings Tell You
The 41 A maximum is the continuous current the reactor can carry at its rated 8 kHz switching frequency. That 8 kHz figure is the drive's carrier frequency — not the motor's output frequency — so this reactor is appropriate for IGBT-based drives switching in that range. The 0.08 mH inductance and 10.2% impedance at 1000 Hz (per the description) give enough choke effect to limit dV/dt and bearing currents without dropping excessive voltage across the reactor at the motor's fundamental frequency.
Mounting footprint is 0.22 m wide by 0.21 m tall by 0.13 m deep. Thermal class H insulation means the winding can run at 180 °C hot-spot temperature, but the 40 °C ambient rating is the design point for the 115 W + 90 W total losses. Keep airflow around the reactor to avoid derating. The EN 61558-2-20 compliance and UL/CSA recognition (per the description) cover the safety transformer standard for reactors — this matters for panel certification.