Product Description:

The HNL01.1E-0230-N0202-A-480-NNNN mains choke is produced by Bosch Rexroth Indramat and belongs to the HNL Mains Chokes series. As a three-phase line reactor, it is installed between the plant supply network and frequency converters to damp current peaks and reduce harmonic distortion that could otherwise shorten drive component life. By limiting steep current changes at the input, it also reduces electrical stress on rectifier sections and other upstream supply components. Within automated cells, it helps stabilize DC-link voltage during rapid load changes, which supports consistent power quality for motion sequences that rely on precise torque and speed control. This function is especially useful when converters accelerate and decelerate axes repeatedly, since the incoming line current can otherwise become less uniform.

This choke is intended for electrical systems that deliver 3 x AC 400-480 V. The input tolerance of -15/+10% lets it remain functional when line voltage drifts during startup or regeneration. It works with fundamental frequencies of 50/60 Hz, so the same model can be used on both European and North American grids. Because the supply system is classified as Feeding, the inductor is placed on the grid side of an inverter where it smooths incoming current before it reaches the drive electronics. The housing has a protection class of IP10, which blocks large foreign objects while leaving ventilation openings available for convection cooling. This enclosure style suits cabinet installations where airflow around passive magnetic components is needed.

The unit is design version 1 and series code 01. The designation HNL Mains Choke identifies the family used for this product line, and these identifiers place it within the established HNL platform. Its winding geometry and copper cross-section are standardized to provide predictable impedance across the rated operating range. Because the choke is a passive magnetic component, its performance depends on the line conditions and the connected converter current rather than on separate control electronics.