The Siemens 4EU3652-0UB00-1BA0 is a 3-phase AC mains choke (Netzdrossel f. FU) designed for frequency converter input lines. It handles a maximum AC current of 910 A at 400/480 V, 50/60 Hz, making it sized for large variable-frequency drive installations in industrial motor control panels.
Sizing and thermal class
Total power loss breaks into 394 W in the coil and 150 W in the iron core at rated conditions — roughly 544 W of heat to vent from the panel. The IP00 enclosure means it's an open-frame component; install where airflow or forced ventilation can clear that thermal load.
Integration and connections
Dimensions are 0.35 m wide, 0.321 m tall, 0.237 m deep — a substantial footprint that needs a dedicated mounting plate or chassis rail, not a standard DIN rail. Main circuit connections use flat-type terminals (bus-bar or large-lug compatible), typical for high-current power distribution. Inductance is 15 µH (0.000015 H), which combined with the 2% voltage drop gives the line impedance needed for a drive input filter stage. Verify the drive manufacturer's recommended line choke impedance before specifying — this is a fixed-value choke, not adjustable.