What this 3-phase filter reactor does in the line
The SIDAC 4EU3032-3MB08-0AA0 is a 3-phase filter reactor rated for 690V AC at 60Hz, delivering 72 kvar of reactive power with a 7% relative throttling factor. It carries a maximum AC current of 67.1A and a rated operating current of 60.4A. The 1.3 mH inductance and 189 Hz resonant frequency are tuned to suppress harmonic currents in power-factor-correction banks or drive line inputs. Thermal class H (180°C insulation system) means the winding can handle sustained heat without degrading — important when this reactor sits in a closed cabinet near a VFD or capacitor bank that radiates heat. The IP00 open-frame construction means no enclosure — this is a panel-mounted component that needs a clean, dry environment or a separate cabinet. It draws 278W of power loss at full load, so factor that into your cabinet cooling calculation.
Where you bolt this reactor in
Mounting dimensions: 0.3m wide, 0.269m tall, 0.211m deep. That footprint fits a standard 300mm-wide backplate section in a 600mm-wide enclosure. The IP00 rating means no dust or moisture protection — this reactor belongs in a ventilated or air-conditioned cabinet, not on the plant floor near washdown. In a cement plant control room that stays sealed and filtered, it eats the dust and runs; in a raw-mill VFD cubicle with forced-air cooling, it's fine. But if your panel sees cement dust ingress, you'll want a separate filtered enclosure around it. The 40°C ambient temperature rating is the standard test condition. Thermal class H gives headroom above that — the winding insulation is rated for 180°C continuous, so a 40°C cabinet ambient with 278W internal heat rise is well within limits. Derate if your cabinet ambient exceeds 40°C, but the H-class margin is generous.