FU). It carries a rated current of 450 A and a maximum current of 500 A at 690 V AC, 50 Hz, with a relative inductive voltage drop of 2% at rated conditions. The 0.05 mH inductance smooths line harmonics and limits inrush current spikes that would otherwise stress the drive's rectifier stage.
Sizing and thermal class
Rated for an ambient temperature of 40 °C, the choke dissipates 300 W in the coil and 138 W in the iron core — total 438 W of heat that must be vented from the enclosure. Thermal class H (IEC 60085) means the insulation system withstands 180 °C hot-spot temperature, giving margin for overloads in a 40 °C cabinet. The IP00 open-frame construction requires the choke to be mounted inside a panel or enclosure that provides the actual ingress protection.
Physical fit
Dimensions are 0.35 m wide by 0.321 m tall by 0.237 m deep. This is a substantial component — not a DIN-rail mount — so plan for floor or back-panel mounting with adequate clearance for ventilation and bus-bar access.