Product Description:

The HNL01.1E-0200-N0125-A-480-NNNN mains choke belongs to the HNL Mains Chokes series and is built by Bosch Rexroth Indramat. This passive line component is installed ahead of a drive controller, where it adds inductance to the three-phase supply. In industrial automation panels, it helps limit inrush current, smooth the input waveform, and reduce conducted harmonic energy so connected drives and upstream protective devices are exposed to less electrical stress. Because it is mounted on the incoming line side, it conditions the supply before the drive rectifier converts AC input power into DC bus energy.

The choke connects to a three-phase network rated at 3 x AC 400–480 V and tolerates a line variation of -15/+10% while remaining synchronized with 50/60 Hz utility power. This operating range supports common industrial mains in both Europe and North America, so one unit can be used across different machine platforms. Matching the stated frequency range helps the magnetic core operate within its intended impedance range under either 50 Hz or 60 Hz service. Internal windings and terminal dimensions are set for Design 1, which keeps inductance and thermal behavior consistent. The enclosure is rated IP10, so it is intended for installation inside a closed control cabinet where limited contact protection is sufficient.

The product uses series index 01 and is intended for a Feeding supply system, which places it on the grid side rather than the motor side of the converter. In that position, the choke acts on the incoming mains current before the drive draws power from the line. The stated voltage margin helps the unit remain effective during moderate brownouts and overvoltage conditions without forcing the magnetic core into saturation. That behavior supports stable impedance during normal duty and helps the upstream supply path remain more controlled during operation.