Output reactor for variable-frequency drive lines
The SIDAC 4EU2752-0AF40-4BA0 is a 3-phase AC output reactor rated for 85 A maximum continuous current and a switching frequency of 8000 Hz. It provides 0.2 mH inductance per phase, sized to limit the dV/dt and peak currents from a PWM drive to the motor, protecting both the cable and the winding insulation on longer motor leads. Rated for a 400 V line and 76.5 A nominal load current (I_LN), the reactor's impedance (UK) is 33 % — meaning it drops about a third of the line voltage at rated current, which is typical for a motor-protection choke on a 3-phase drive output. The 0.2 mH value is tuned for the 8000 Hz carrier frequency; at lower switching frequencies the inductance may be insufficient to limit harmonics, so verify the drive's PWM setting against this part's 945 Hz minimum operating frequency.
Thermal and enclosure class
IP00 means the reactor is open-frame — no enclosure protection against dust or water ingress. The thermal class H (IEC 60085) winding insulation allows a 180 °C hot-spot temperature, which is standard for high-temperature reactor applications in drive cabinets with limited airflow. Total power loss at rated load is 530 W (400 W coil loss + 130 W iron core loss) at a 40 °C ambient. That heat must be dissipated within the enclosure; factor it into the cabinet's thermal budget — a 530 W continuous heat source in a sealed box will raise internal temperature significantly without forced ventilation.
Termination is via flat-type connectors on the main current circuit — no screw terminals, no ring lugs. The panel builder will need to mate these with flat busbars or fork-type crimp terminals rated for the 85 A continuous path. Verify the connector dimensions against your existing busbar layout before committing the panel design.