Product Description:

The HNF01.1A-H350-R0180-A-480-NNNN is a mains filter manufactured by Bosch Rexroth Indramat for the HNF Mains Filters series. Installed ahead of regenerative drive controllers, it attenuates conducted interference and limits feedback energy so returned power is handled more cleanly at the supply connection. Because it sits on the line side of the drive system, it helps reduce unwanted electrical noise before it reaches the wider plant network. This role makes it suitable for drive systems that return excess energy to the mains during braking or other overhauling conditions.

This filter has an enclosure rating of IP20, so live parts are guarded against accidental finger contact while cabinet airflow remains available. It accepts a three-phase supply of 3 × AC 400–480 V -15/+10%, 50/60 Hz, which matches common industrial low-voltage systems and allows moderate line variation without requiring a different unit. Electromagnetic compatibility is classified as C3, making it appropriate for industrial installations supplied from their own transformer. The unit is intended for regenerative devices only, and its construction series is 01. This arrangement suits cabinet-mounted regenerative converters that send braking energy back toward the supply.

The product uses Design Version 1, which identifies the first released mechanical and terminal arrangement for this model. Compliance with DIN EN 61800-3 depends on correct installation practices such as shielded cable routing and proper protective-earth bonding. The filter is intended for use inside a suitable electrical enclosure ahead of compatible regenerative drives. Its passive network supports line-side interference reduction without added control electronics. It works with the input stage of the connected drive rather than performing active power conversion on its own, and correct mounting and wiring support the expected emission and immunity performance in industrial service.