What this filter reactor does on the line
The Siemens 4EU3032-0MM08-0AA0 is a 3-phase filter reactor rated 75 kVAR at 550 V, 50 Hz. It is designed as a line or load reactor — the 7 % impedance (P(%):7) means it drops about 7 % of rated voltage at full load, which is the typical figure for harmonic mitigation and motor-drive protection in industrial power distribution. The 189 Hz resonant frequency (FRES(HZ):189) places the trap below the 5th harmonic (250 Hz at 50 Hz fundamental), so it attenuates the dominant 5th and 7th harmonics from six-pulse drives.
IP00 enclosure — no drip shield, no finger guard. This reactor mounts inside a cabinet or on a panel backplate, not in a washdown or outdoor location. Terminals are flat-type (bus-bar style), so plan for lug or bar connections rather than ring terminals. The EN 61558-2-20 >CHOKE< classification confirms it follows the safety standard for reactors and chokes, covering thermal and dielectric withstand.