The SIDAC 4EM5104-4CB00 is a single-phase smoothing choke (Glaettungsdrossel) rated for 4.5 A DC continuous, with a maximum of 5 A DC. Its 0.08 H inductance filters ripple on a DC bus — think DC link in a drive, rectifier output, or battery charger where you need to knock down current harmonics. This is an open-frame (IP00) component — no enclosure, so it mounts inside a cabinet, not on a wall. Terminals are screw-type or tab connections, which means you land ring lugs or fork terminals directly. No parallel windings selectable; it's a fixed-inductance part. Power loss breaks down as 28 W in the coil and 0.6 W in the iron core, totaling 28.6 W at rated load. That heat has to go somewhere — plan for airflow or spacing in a crowded panel. Ambient temperature rating is 40 °C.
Physical fit — dimensions and mounting
Footprint is 0.097 m wide by 0.129 m deep, height 0.111 m. That's about 97 × 129 × 111 mm — roughly the size of a thick paperback. No DIN-rail clip; it's a bolt-down choke. Plan for a subplate or a mounting bracket.