FU" tells you exactly that. It sits between the supply and the drive's rectifier, smoothing current harmonics and limiting inrush. This is an open-frame (IP00) component — no enclosure, no finger-safe terminals. It mounts inside a panel, not on a wall. The flat-type terminals for the main circuit are sized for lug or bus-bar connections, so plan for a bolted interface rather than a spring-cage or screw-clamp. Thermal class H insulation (180 °C) per IEC 60085 means the coil can run hot without degrading the magnet wire — that matters when the choke is pulling full current inside a warm cabinet.
Power loss and thermal budget
Total power loss splits into 125 W from the coil (copper losses) and 27 W from the iron core (hysteresis and eddy-current losses), for a combined 152 W at rated load. At 40 °C ambient, the choke is at its rated thermal capacity — push the cabinet temperature higher and you'll need to derate current or add forced airflow.
Dimensions for panel layout
Footprint is 0.225 m wide by 0.21 m tall, with a depth of 0.147 m. That's a substantial block — roughly 9 by 8 by 6 inches — so it needs dedicated real estate on the backplate or a mounting shelf. Not a DIN-rail snap-on; it bolts down.