It handles a maximum continuous current of 800 A and a rated (nominal) current of 720 A, with a DC-side rating of 980.3 A. The inductance is 43 µH, producing a relative inductive voltage drop of 4 % at rated current and frequency. This choke sits between the AC line and the converter DC link to limit di/dt and reduce harmonic distortion — essential for protecting the converter's input rectifier and smoothing the DC bus.
The 800 A maximum and 720 A rated current define the thermal limit under continuous AC operation. The DC rating of 980.3 A is higher because DC current produces lower core losses — this matters if you're using the choke on the DC side of a converter. The 4 % voltage drop at rated current is the impedance figure that determines how much the choke limits inrush and fault current; a 4 % drop is typical for a commutating choke in a 500 V system. The 43 µH inductance is the actual value that governs the rate of current rise (di/dt) — critical for matching to the converter's switching frequency and gate-drive timing. The IP00 enclosure means it's open-frame, intended for installation inside a cabinet or enclosure that provides its own protection against dust and contact.
Thermal and connection details
Total power loss is 631 W — 370 W in the coil and 261 W in the iron core. Thermal class H (IEC 60085) means the insulation system can withstand 180 °C hot-spot temperature, giving generous headroom for the 40 °C ambient rating. The main circuit connects via flat-type terminals (bus-bar style), not screw clamps — expect to bolt copper bars directly. Dimensions are 0.229 m deep, 0.41 m wide, and 0.385 m high; plan cabinet space accordingly.