Product Description:

The HNL01.1R-0690-C0065-A-480-NNNN mains choke is manufactured by Bosch Rexroth Indramat and belongs to the HNL Mains Chokes series, which is intended for the line side of regenerative inverters. The component is inserted between the public three-phase network and the converter rectifier so that the added inductance limits di/dt, reduces conducted electromagnetic interference, and helps extend the service life of semiconductor devices. By helping shape the current waveform, the choke supports compliance with international harmonic standards and helps keep automation cells within expected power-quality limits.

Electrical compatibility centers on a nominal line window of 3 x AC 400–480 V (-15/+10%), 50/60 Hz, allowing direct connection to typical plant feeders without a step-down transformer. To broaden attenuation bandwidth, an internal filter stage is supplied with capacitors, so the resulting L-C network lowers total harmonic distortion above the fifth order. The steel frame carries an IP10 protection rating; fingers are shielded from energized coils while large ventilation slots maintain airflow during operation. Within the drive chain, the integrated supply system is regenerative, so energy can return to the grid and the magnetic core must tolerate current reversal without saturating. Mechanical execution follows design version 1, so terminal pitch, fixing hole pattern, and bobbin geometry match the platform's initial release.

Traceability data rounds out the hardware description. The choke is cataloged under internal series code 01, linking it to a set of thermal and electromagnetic test reports. Separate mechanical, coating, and cooling alternatives are not listed in the product information for this version, so the published layout remains focused on the standard configuration.