Product Description:

The HNL01.1E-0100-N0220-A-480-NNNN is a three-phase mains choke built by Bosch Rexroth Indramat and assigned to the HNL Mains Chokes series. In an automation cabinet, this component is wired between the incoming utility lines and the drive system to limit current peaks and damp harmonics that can affect converters and protective devices. By adding inductance on the supply side, the choke reduces line distortion and improves the power factor of feeding inverters. It also helps present a smoother electrical source to the rectifier section of the drive, which can reduce stress on upstream protection during normal operation.

The unit carries a protection rating of IP10, so its housing is open for convection cooling while still preventing accidental contact with live parts. It is designed for grids that deliver 3 × AC 400–480 V, and the acceptable voltage fluctuation is −15 /+10 %, allowing continued operation during common utility sag or swell events. Frequency compatibility spans 50/60 Hz, and the choke is intended for a feeding supply system, so it is installed where energy enters the drive lineup rather than on the motor side. This combination suits common industrial mains in different regions and allows the reactor to support the input stage without excessive magnetic saturation or overheating.

The component is design version 1 and belongs to Series 01. It is intended for cabinet installation ahead of drive converters, where added line inductance is needed to moderate the electrical behavior seen at the input stage. This placement helps smooth incoming current, reduces stress on rectifier sections and protective devices, and supports more stable operation of the connected drive system. The open construction also makes it better suited to enclosed panel layouts than exposed field mounting.