The Siemens SIDAC 4EU9932-0AF00-0BA0 is a 3-phase filter reactor — a line-reactor variant tuned with a 7% relative throttling factor and a resonant frequency of 189 Hz. It sits between the drive and the supply, knocking down harmonic currents and limiting the rate of rise of fault current. With an IP00 enclosure, it's an open-core assembly meant for a clean, dry electrical room or a ventilated cabinet — not a washdown environment. The screw/flat-type terminals handle the 85 A continuous rating, with headroom to 94.7 A maximum.
Rated 690 V AC at 50 Hz, this reactor is sized for 400 V or 480 V drives with margin — the 690 V insulation class means it won't saturate on the higher DC-link voltages common in 480 V PWM drives. The 7% throttling factor is the sweet spot for most 6-pulse rectifier front ends: it drops enough voltage at full load to smooth the current waveform without dragging the DC bus below the undervoltage threshold on a sag. The 97 kvar reactive power rating tells you the reactor's core can handle the volt-ampere reactive demand of a drive pulling close to 85 A. Thermal class H insulation means the winding can survive a 180 °C hot-spot temperature — critical when the reactor shares a cabinet with a drive dumping 270 W of heat into the ambient.
