Product Description:

The HNF01.1A-F240-E0125-A-480-NNNA is a three-phase mains filter produced by Bosch Rexroth Indramat for the HNF Mains Filters series. In an automation cabinet, it is installed ahead of drive controllers so the supply side stays within industrial electromagnetic limits while still delivering the required power to motion axes. The unit is intended for feeder circuits in multi-axis machines where the combined cable length can be substantial, making input-side filtering important for stable operation. By placing the filter upstream of the drives, the cabinet can address conducted interference before it reaches the rest of the power system.

The filter accepts a nominal line voltage of 3 × AC 400 to 480 V, -15%/+10%, 50/60 Hz. This range matches common inverter systems and allows normal supply variation without driving the magnetic components into saturation. Its electromagnetic classification is C3 in accordance with DIN EN 61800-3, which means conducted emissions are limited for industrial networks, although additional precautions are still needed near residential wiring. The enclosure has an IP20 rating, so the unit is finger-safe but still requires installation inside a closed panel for protection against dust and splashing liquids. The application rating covers 6 axes with a maximum cable length of 240 m, indicating that the internal components are sized for that connected load. The unit is marked for feeding devices only, confirming that it is intended for the supply side rather than for motor-side installation or regenerative energy paths.

The unit is identified as design version 1, which marks the first build of this configuration. Within the product family, it uses series code 01 to indicate the mechanical format used for related filters in the same platform. These identifiers mark the version and family grouping used for this model and keep the nomenclature consistent across the product line. They are also useful when matching documentation and mounting arrangements to the installed filter.