50 kVAR Line Reactor for 660 V 50 Hz Drives
The Siemens 4EU3032-0MP08-0AA0 is a 3-phase line reactor rated 50 kVAR at 660 V, 50 Hz, with 5.67% impedance and a 210 Hz resonant frequency. It is designed to sit between the supply and a variable-frequency drive, limiting harmonic current injection and reducing voltage notching on the line. The 5.67% impedance is a common choice for 6-pulse drives in industrial plants — high enough to meet IEEE 519-2014 harmonic limits at the point of common coupling for most installations, without excessive voltage drop under load.
Mounting and Terminal Configuration
IP00 open-frame construction means this reactor is intended for inside a panel or cabinet — no touch-safe enclosure. The flat-type terminals accept lug or bus-bar connections; plan for a minimum 660 V rated buswork and clearance to adjacent components. The 40 K temperature rise at rated current (TA/ISOKL:40 /H) is typical for a line reactor of this class; ensure panel ventilation moves enough air to keep the ambient below 40 °C, or derate per the manufacturer's thermal curve.