Rated 405 A continuous with a 450 A maximum thermal current at 750 V AC, 50 Hz, it carries a 0.12 mH inductance and a 4 % relative inductive voltage drop at rated conditions.
The 405 A rated current (I_LN) and 450 A maximum thermal current (I_thmax) define the continuous load envelope — this choke can carry a 405 A fundamental current indefinitely at 40 °C ambient, with headroom to 450 A for overloads that stay within the thermal time constant. The 750 V AC operating voltage covers 400 V, 480 V, and 690 V line-to-line systems common in European and North American industrial drives. The 0.12 mH inductance and 4 % voltage drop (at rated current and frequency) are the values the drive manufacturer expects to see for proper DC-link ripple filtering and commutation notch suppression; swapping in a choke with a different inductance shifts the notch frequency and may increase peak voltages across the rectifier diodes. The IP00 rating means the choke is an open-frame component — no enclosure, no finger-safe protection. The thermal class H (IEC 60085) insulation system allows a 180 °C hot-spot temperature, which is standard for converter-duty chokes that see both fundamental current and switching-frequency harmonics. The flat-type terminals accept busbar or large cable lugs; plan for a bolted connection, not spring-clamp or screw-cage wiring.