Product Description:

The HNF01.2D-M900-R0065-A-480-NNNN mains filter is built by Bosch Rexroth Indramat and belongs to the HNF Mains Filters series. Installed between the plant supply network and a group of regenerative drive controllers, the unit attenuates conducted interference and provides a controlled return path for recovered energy. By conditioning the three-phase supply, it supports stable operation in multi-axis automation cells that use shared DC-bus regenerative drives. It is intended for cabinets that combine several drives on one regenerative power structure and need predictable electromagnetic compatibility at the incoming mains connection.

The filter accepts a supply of 3 x AC 400 to 480 V with a tolerance of -15% to +10% at 50/60 Hz, making it suitable for common industrial low-voltage grids. Its enclosure has an IP20 rating, so the device is finger-safe when mounted inside a control cabinet with forced convection. Conducted emissions are limited to C2 per DIN EN 61800-3, extended frequency range, which suits industrial environments where motor and signal cables are routed near each other. The unit is intended for regenerative devices only, and it is built as version 2 with the corresponding housing and terminal arrangement for this power class.

The application envelope covers up to 15 axes with a maximum cable length of 900 m, allowing the filter to serve long multi-drive lines while staying within EMC limits. Type code 01 in the designation matches the related wiring and service documentation for this configuration. This range suits installations that use grouped regenerative inverters on one line-side connection and have extended motor cable runs. The filter is used where several axes share the same regenerative supply structure instead of operating as isolated single-drive sections.