Line Reactor for 400V AC Drives — 193A Peak, 173A Continuous
The SIDAC 4EU9932-0AM40-0BA0 is a 3-phase filter reactor rated for 400V AC at 50Hz. It carries a maximum current of 193A and a rated continuous current of 173A, with an inductance of 0.0013H and a relative throttling factor of 5.67%.
The 173A rated current is the continuous thermal limit at 40°C ambient — size your drive's input current to stay under this for sustained operation. The 193A maximum is the short-term peak the reactor can handle without saturating; useful for motor starting inrush or momentary overloads. The 5.67% throttling factor (impedance relative to the drive's base load) provides enough line impedance to reduce harmonic distortion and limit di/dt on the drive's input rectifier, but is low enough to avoid excessive voltage drop at full load. The resonant frequency of the filter is 210Hz — well above the 50Hz line fundamental and below typical switching frequencies of 2-16kHz PWM drives, so it won't resonate with the drive's carrier frequency. Thermal class H (180°C) insulation means the reactor can tolerate high internal temperatures without degrading the winding varnish, which matters when it's installed in a warm cabinet near the drive's heat sink.
Panel Integration — Open-Frame Mounting
This is a chassis-mount component — plan for a mounting plate or bracket inside the enclosure. The flat connector style accepts busbar or cable lug connections; torque values per the manufacturer's installation instructions (not listed here, but standard for M8 or M10 hardware on this current class). Allow clearance around the reactor for air circulation — it dissipates heat through natural convection, and thermal class H assumes free airflow.