Product Description:

The HNF01.1A-M750-R0300-A-480-NNNN is a three-phase mains filter manufactured by Bosch Rexroth Indramat and assigned to the HNF Mains Filters series. The unit is installed between the plant mains and regenerative drive converters to attenuate conducted interference and allow controlled energy feedback into the power grid. Within an automation cell, it protects connected inverters, sensors, and communication equipment from switching noise while ensuring grid-side current meets industrial EMC requirements.

Electrical parameters define where the filter can be wired. It operates on a three-phase supply of 3 × AC 400 … 480 V –15 +10% and handles line frequencies of 50/60 Hz, so it can be placed on typical European or North-American factory feeds. The enclosure provides a IP20 degree of protection, meaning live parts are finger-safe but the device must be mounted inside a cabinet. Emissions on the mains side are classified as C3 in accordance with DIN EN 61800-3; this category applies to industrial environments with dedicated transformer feeds. Hardware changes are tracked by Design Version 1, allowing service personnel to match spare parts with drive documentation.

Additional characteristics refine its role in multi-axis drive groups. The build code identifies the filter as Series 01, which aligns mechanically and electrically with first-generation HNF modules. Connection labeling states the unit is intended for regenerative devices only, so non-regenerative loads should remain on separate feeders to prevent harmonic coupling. Specifying the product family as HNF Mains Filters helps system integrators pair the unit with standardized busbars and cabinet layouts across the series. Finally, highlighting the manufacturer name Bosch Rexroth Indramat ensures compatibility checks remain consistent with other components from the same vendor.