Product Description:

The HNL01.1R-0980-C0026-A-480-NNNN is a three-phase line reactor manufactured by Bosch Rexroth Indramat and positioned within the HNL Mains Chokes series. Installed between the line supply and a regenerative drive inverter, the choke limits harmonic distortion, attenuates voltage spikes, and smooths the current drawn by the converter. Its passive design makes it suitable for industrial automation cabinets that use active front-end or power-regenerating drive stages. By reducing abrupt current changes at the input, it also helps lower electrical stress on upstream supply components and supports steadier power quality at the cabinet feed.

This model is supplied with capacitors, and the inductor-capacitor network adds reactive power compensation while further suppressing differential-mode noise. The enclosure has an IP10 rating, so it helps prevent contact with large objects but still needs to be installed inside a closed panel where dust and fluids are controlled. Nominal feed is 3 x AC 400–480 V -15/+10% at 50/60 Hz, allowing connection to standard low-voltage utility grids. Because the choke is intended for a regenerative supply system, it can moderate bidirectional energy flow during braking events. This arrangement is useful in systems where inverter switching activity or line disturbances could otherwise affect other equipment connected to the same supply.

The unit is part of series 01, which corresponds to the first generation of this product line. Its mechanical build follows design version 1, so it matches the mounting pattern used for that release and fits the intended cabinet layout without additional interface changes. The designation HNL Mains Choke identifies it as a line-side reactor used with Indramat drive systems, where added impedance helps restrain peak currents and smooth interaction with the incoming supply during dynamic load changes. This placement supports stable converter operation while reducing unwanted disturbance on the input side of the installation.