What it is and what it does
The Siemens 4EU3652-8UC00-0A is a three-phase mains choke rated for 400 V AC at 50 Hz, with a maximum continuous current of 225 A and a rated current of 202.5 A.
Thermal class and losses — what they mean for panel fit
Rated for thermal class H per IEC 60085, meaning the winding insulation is good for a 180 °C hot-spot temperature. That's a step above the more common class F (155 °C) — useful if the choke sits in a warm enclosure or near other heat sources. The total power loss breaks into 350 W in the coil and 236 W in the iron core, so roughly 586 W of heat to vent. With IP00, it's a bare choke — no enclosure, no finger-safe cover. Mount it inside a cabinet with enough ventilation or forced air to handle that dissipation, and use the flat connectors for the main circuit terminations.
Physical footprint
Dimensions: 0.35 m wide, 0.321 m tall, 0.227 m deep.