HNF01.1A-F240-E0051-A480-NNNN Bosch Rexroth Indramat
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MPN: R911307937
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The Bosch Rexroth Indramat HNF01.1A-F240-E0051-A480-NNNN is part of the HNF Mains Filters series and is designed for feeding devices only. The filter supports up to six axes with a maximum cable length of 240 meters and features a degree of protection rated IP20. It meets EMC Category C3 requirements as specified in DIN EN 61800-3.
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Product Description:
The HNF01.1A-F240-E0051-A480-NNNN is a line-side mains filter from the HNF Mains Filters series manufactured by Bosch Rexroth Indramat. Installed upstream of IndraDrive power sections, the unit limits conducted noise and helps drive cabinets meet industrial electromagnetic compatibility targets. By attenuating high-frequency interference before it reaches the plant supply, it reduces disturbance to nearby automation equipment and supports stable operation of connected power sections. This placement also helps prevent unwanted emissions from traveling back through shared distribution wiring in multi-drive installations.
This filter is sized for systems with up to 6 axes, and the permissible motor-side cable length can reach 240 m when the installation follows the intended layout. The enclosure has an IP20 rating, so it is intended for installation inside a closed control cabinet where it is protected from direct exposure. In European EMC classification, the unit falls under C3 according to DIN EN 61800-3, which places it in industrial applications rather than general residential settings. The product is Design Version 1, indicating the version used for this filter's mechanical arrangement and terminal layout.
The supply terminals are marked L1, L2, and L3 and are intended for feeding devices only, so the filter should be installed on the incoming line side instead of at a motor output. The series code is 01, which identifies this unit within the HNF family. Inside the housing, choke windings and capacitors divert common-mode interference while keeping normal line losses low during operation. Proper shielding and grounding are still necessary because the filter works as one part of the overall EMC path between the mains source and the drive system.
