The Siemens SIDAC 4EP4010-0HS00 is a 3-phase output reactor (output choke) rated for 80 A maximum current and a 4 kHz switching frequency. Its 0.1 mH inductance sits between a variable-frequency drive and the motor to smooth the PWM waveform, reduce voltage spikes, and limit capacitive charging currents in long cable runs. The IP00 open-chassis design means it mounts inside a cabinet — not on the machine frame — and the flat-type terminals accept busbar or lug connections, not ring-tongue terminals on a DIN-rail block.
The 80 A maximum is the thermal current rating (Ith) at 40 °C ambient, with a 65.2 W coil loss and 43.2 W iron-core loss that together dump 108.4 W into the enclosure — plan for that heat in your panel thermal budget. The 4 kHz switching frequency matches the carrier frequency of many modern IGBT drives; a lower switching frequency (2–3 kHz) would still be within the reactor's bandwidth, but the 0.1 mH value is sized for the harmonic content at 4 kHz. The 500 V rated voltage (from the description) covers 400 VAC and 480 VAC line supplies. Thermal class B (130 °C rise) per IEC 60085 means the winding insulation withstands the temperature rise from the iron and copper losses without accelerated aging — standard for general-purpose industrial reactors that don't see overload cycles. The 0.14 m depth, 0.21 m width, and 0.17 m height footprint fits a typical drive cabinet backplate; verify the mounting hole pattern against your enclosure layout because there is no DIN-rail clip — this bolts directly to the panel.
Mount this reactor on the output side of the drive, between the drive terminals and the motor cable. The flat-type terminals for the main circuit accept copper busbars or cable lugs — not spring-cage or screw-clamp connectors — so plan your wiring terminations accordingly. Because the reactor is IP00, it requires a minimum distance to grounded metal parts per the drive manufacturer's guidelines; treat it as a live component inside the cabinet.