The Siemens 4EU2722-0FH00-1BA0 is a three-phase mains choke (Netzdrossel f. FU) designed for variable-frequency drive input lines.
Thermal and environmental constraints
Rated for a 45 °C ambient with Class H insulation (180 °C thermal class per IEC 60085), this choke sheds 150 W in the coil and 120 W in the iron core at full load — 270 W total heat that must be managed inside the enclosure. The IP00 rating means it is an open-frame component; it requires panel or cabinet mounting with no ingress protection. Flat-type terminals on the main circuit expect busbar or cable-lug connections, not DIN-rail spring clamps.
Physical footprint
Envelope dimensions are 0.27 m wide by 0.248 m tall by 0.208 m deep. That footprint — roughly 270 mm × 248 mm × 208 mm — is a substantial panel-mounted reactor; plan for dedicated mounting feet or a sub-panel, not a DIN rail.