HNL01.2R-0540-C0094-A-480-NNN

The Bosch Rexroth Indramat HNL01.2R-0540-C0094-A-480-NNN from the HNL Mains Chokes series is a high-performance mains choke designed for robust industrial environments. It connects directly to three-phase supplies in the 400–480 V AC range, operating reliably at 50/60 Hz. The choke delivers a continuous current rating of 94 A while safely dissipating 420 W of heat during normal operation. With an inductance of 520 µH, it stabilises the DC bus voltage and mitigates transient disturbances.

Housed in a rugged enclosure rated to IP10 protection, the HNL01.2R-0540-C0094-A-480-NNN supports a regenerative supply system for energy-efficient feedback into the grid. The design includes an additional option of integrated 20 µF capacitors to further reduce harmonic distortion and improve power factor. Measuring only 340 x 385 x 220 mm and weighing approximately 65 kg, installation in compact drive cabinets is straightforward. By integrating a mains choke between the mains filter and the main contactor, system designers ensure enhanced continuous DC bus power and reduced line-current perturbations.

Optimised for use with compatible IndraDrive converters and feeding supply units, this choke prevents harmful surges and spikes from reaching sensitive drive electronics. Its proven performance in reducing harmonic content and protecting against voltage transients makes it an essential component for reliable, high-density automation installations.