The Siemens 4EP3600-0VS00 is a 3-phase commutation reactor (line reactor) designed for installation between the AC supply and a converter's input. Its job is to smooth current draw, limit harmonic distortion, and reduce voltage notching on the line side of variable-frequency drives and other power converters. The 0.3 mH inductance and 34.2 A rated current define the motor-side load it can support — sized for a converter feeding a motor drawing up to that continuous current at 40 °C ambient.
Rated current is 34.2 A, with a maximum (overload) capability of 38 A — the reactor can handle short-duration current spikes above the continuous rating without saturating the core. That 38 A ceiling is the peak the winding can sustain thermally before the Class F insulation (155 °C hot-spot) is stressed. The 46 W total power loss splits into 36 W in the coil and 10 W in the iron core; that heat must be dissipated into the surrounding air, so the IP00 enclosure (no drip shield or finger guard) means this reactor is intended for a ventilated cabinet or electrical room, not a washdown or dust-tight panel.
Footprint is 0.148 m wide by 0.139 m tall, with a depth of 0.078 m. The main circuit connection uses free cable endings — no pre-terminated lugs or busbar studs — so the installer strips and crimps ring or fork terminals to match the converter's input terminals. Mounting is via the reactor's own chassis; there is no DIN-rail clip, so it bolts directly to a backplate or sub-panel. The 3-phase power loss of 46 W means it runs warm; leave at least 50 mm clearance above and below for natural convection.