What this choke does in the panel
The Siemens 4EP3600-8US00 is a three-phase mains choke (line reactor) designed for the input side of a variable-frequency drive. It limits harmonic distortion and smooths current peaks, which reduces stress on the drive's rectifier and extends its service life. Rated for 500 V AC at 50 Hz, it carries a maximum continuous current of 12.5 A and a rated current of 11.25 A. The 1.5 mH inductance produces a 2% relative inductive voltage drop at rated conditions — a typical value for a drive input choke that keeps the DC bus ripple manageable without dropping too much voltage across the reactor. This is an open-frame (IP00) component — no enclosure, so it needs to live inside a panel or cabinet that provides the ingress protection. The screw-type and tab terminals accept standard ring or fork lugs; plan for a 0.148 m wide by 0.139 m tall footprint, with a depth of 0.078 m. Thermal class B insulation (130 °C rise) means it's rated for a 40 °C ambient; if your panel runs hotter, derate the current or add forced ventilation.
Integration notes for the panel builder
Mount the choke close to the drive's line input — long cable runs between the choke and drive can reintroduce the harmonics the choke is supposed to filter. The screw/tab terminals accept conductors sized for 12.5 A; use ring terminals on the tab connections for a vibration-resistant joint. Because it's IP00, keep at least 25 mm of clearance around the choke for airflow and creepage. The 49.6 W coil loss plus 17 W iron-core loss total about 67 W of heat to vent out of the enclosure.