Product Description:

The HNL01.1E-0100-N0450-N-690-NNNN is a three-phase mains choke manufactured by Bosch Rexroth Indramat. In an industrial automation cabinet, it is installed ahead of frequency converters and servo drives to smooth line current, reduce harmonic distortion, and limit the effect of inrush current on upstream protective devices. By placing inductance between the utility supply and the power electronics, the choke helps stabilize the DC-link voltage during load changes and supports electromagnetic compatibility in factory power systems. This role is especially useful where multiple drives share the same feeder and switching activity can disturb the incoming line.

This unit accepts a line range of 3 × AC 380 V to 3 × AC 690 V, so one choke can serve common low-voltage plant supplies used in different regions or transformer configurations. Its enclosure has an IP00 rating, which means the coil assembly is open and must be mounted inside a protective cabinet with suitable airflow. Because the assembly is open, the cabinet must prevent accidental contact with energized parts while still allowing heat to dissipate. The unit uses Design Version 1, which identifies the first mechanical and electrical iteration of this model. The terminals are arranged for an incoming supply system, and the unit does not include additional thermal sensors or surge suppressors.

The choke is part of Series 01, so its mounting dimensions remain consistent within this product range. It belongs to the HNL Mains Chokes line, and its magnetic characteristics are intended for use with compatible drive systems. The consistent mounting pattern helps keep panel layout predictable when different inductance ratings are used in the same family. In service, the choke helps reduce distortion on the incoming mains and supports steadier operation when connected drives draw changing current.