What this output reactor does on the line
The SIDAC 4EU3052-0EB00-4BA0 is a 3-phase output reactor (also called an output choke) rated for 480 V AC, 54 A continuous load current, and a switching frequency of 8 kHz. It sits between the VFD output and the motor cable, limiting the dv/dt and peak voltage spikes that long cable runs can reflect back into the drive output stage. The 0.2 mH inductance and 38 % impedance (UK) are sized to protect the motor insulation and reduce bearing current in applications with cable lengths beyond 50 m. Thermal class H insulation (180 °C continuous rating) and the combined 270 W power loss (69 W coil + 201 W iron core) mean this reactor dissipates heat steadily under full load. The IP00 enclosure requires cabinet mounting with clearance for natural convection — no fan needed, but don't bury it against other heat sources.
Sizing and fit considerations
Physical footprint: 0.30 m wide × 0.26 m tall × 0.21 m deep. Flat-type terminals accept bus bar or large-gauge ring lugs — no screw-clamp connection. Verify the mounting plate pattern before panel layout; this is not a DIN-rail device. Rated for 40 °C ambient. If your cabinet ambient runs higher, derate the continuous current — the thermal class H headroom buys margin, but the iron-core losses dominate at elevated temperatures.