The SIDAC 4EP4000-0SS00 is a 3-phase filter reactor (line choke) rated for 415 V AC at 50 Hz, with a rated current of 22.1 A and a maximum current of 24.6 A. Its 2 mH inductance smooths current ripple and limits harmonic distortion on the line side of a variable-frequency drive or power supply — a standard application for this class of component.
The 22.1 A rated current is the continuous RMS current the reactor can carry at its rated 55 °C ambient without exceeding the Class B (130 °C) temperature rise limit per IEC 60085. The 24.6 A maximum is the short-time overload ceiling — useful for motor starting or temporary load bumps, but not for sustained operation. The 78.4 W power loss is the heat the reactor dumps into the enclosure at rated load; factor that into your panel thermal budget. Screw-type terminals accept standard ring or fork lugs for the main circuit wiring.
The reactor measures 0.219 m wide by 0.179 m tall by 0.143 m deep. Screw terminals on the main circuit make for straightforward wiring with ring lugs. The 78.4 W power loss should be included in the enclosure's thermal calculation; forced ventilation may be needed if other heat sources are nearby.