The Siemens SIDAC 4EU2732-0BD08-4BA0 is a 3-phase filter reactor rated for 47.6 A continuous and 52.9 A maximum at 690 V AC, 50 Hz. With a relative throttling factor of 5.67 % and an inductance of 0.0017 H, it's sized to limit harmonic currents and reduce voltage notching on variable-frequency drive inputs or other non-linear loads. The 244 W power loss at rated load gives you a number for enclosure heat dissipation — plan for that in the panel thermal budget.
The 47.6 A rated current and 690 V operating voltage match a standard 400–690 V three-phase line feeding a drive or harmonic filter bank. The 5.67 % impedance is typical for input line reactors — enough to smooth current ripple and limit fault current without excessive voltage drop at full load. The resonant frequency of 210 Hz means this reactor will not resonate with the 50 Hz fundamental or common 5th/7th harmonic bands, but check your system's harmonic spectrum if you have a tuned filter downstream. Thermal class H (180 °C insulation) and a 40 °C ambient rating give headroom for continuous operation in a warm enclosure. IP00 means no ingress protection — it must live inside a panel or cabinet, not in a washdown or dusty environment. The flat connector / screw-type terminals accept lug or busbar connections typical for power circuit wiring.
Integration notes
Physical footprint: 0.27 m wide × 0.248 m high × 0.187 m deep. It's a panel-mount component — no DIN-rail clip, so plan for bolt-down or bracket mounting. The 50 kvar reactive power rating indicates it can support a capacitor bank of that size; verify the filter bank's tuning to avoid parallel resonance at 210 Hz.