Product Description:

The HNL01.1E-0362-N0080-A-500-NPNN/S127 is a mains choke produced by Bosch Rexroth Indramat and assigned to the HNL Mains Chokes series. Installed in the input section of converters and servo inverters, the component adds distributed inductance to the supply lines so that current rise is limited and line-side harmonic distortion is reduced. By smoothing the current waveform, the unit improves power factor and decreases stress on upstream fuses and contactors in industrial automation cabinets. In converter-fed systems, that line conditioning can also help moderate peak input current drawn by the rectifier stage during normal operation.

The choke’s enclosure carries a protection category of IP10, which helps prevent accidental contact with internal windings and requires installation inside a closed electrical panel. It is designed for a line voltage range of 3 x AC 380–500 V and maintains correct inductive impedance even when the supply varies by -15/+10% from nominal. Grid frequency compatibility covers 50/60 Hz, allowing the same hardware to operate on common utility networks. Because a mains choke must present stable inductance across the full voltage window, dielectric spacing, copper cross-sections, and lamination stack height are selected so thermal rise remains within permissible limits during continuous converter loading. For cabinet layouts, the protected but open design means the unit belongs behind panel doors rather than in exposed machine-mounted locations.

This model is identified as design version 1, a first-release configuration verified against the electrical clearances required in the 01 construction series. Within the broader HNL Mains Choke product group, the device is categorized for feeding operation, which means it is wired between the incoming service and the drive rectifier rather than on the motor side. This placement lets the choke act on line-side current before it reaches the converter input. As a line-side component, it supports the supply path ahead of the drive and is not installed between the inverter output and the motor.