Product Description:

The HNF01.1A-F240-E0125-A-480-NNNN is a mains-side electromagnetic interference filter in the HNF Mains Filters series manufactured by Bosch Rexroth Indramat. The unit is installed between the plant’s supply network and Rexroth drive controllers, where it mitigates conducted emissions and limits line-borne disturbances that could affect adjacent automation equipment. By smoothing high-frequency components on the three-phase supply lines, the filter helps keep multi-axis motion systems within accepted electromagnetic compatibility limits.

The filter accepts input at 3 x AC 400 to 480 V (-15%/+10%) at 50/60 Hz, so it connects directly to standard industrial low-voltage grids without an intermediate transformer. A housing classified as IP20 protects the internal inductive and capacitive elements from accidental contact while remaining suitable for control-cabinet mounting. Compliance with C3 in accordance with DIN EN 61800-3 means the filter is intended for industrial environments that are not directly connected to a public low-voltage supply, and the designation for feeding devices only indicates that it is intended for drive inverters rather than general-purpose loads. The application rating of 6 axes, max. cable length 240 m allows the specified total motor-cable run while maintaining attenuation and resonance behavior.

Series identifier 01 places this model in the first generation of the product family, and the internal layout corresponds to Design version 1. This arrangement keeps the mechanical and electrical interface aligned with compatible drive packages used in the same installation. Within the HNF Mains Filters line, the unit helps maintain shield effectiveness and conductor symmetry in machine tools and material-handling cells where multiple inverters share a common supply bus.