Product Description:

The HNF01.1A-M9000-E0051-A-480-NNNN mains filter is supplied by Bosch Rexroth Indramat within the HNF Mains Filters series. It is installed on the supply side of drive packages to attenuate conducted interference and to protect upstream equipment from high-frequency noise. Intended for multi-axis automation, the filter conditions the 480 V AC mains so inverter drives can meet electromagnetic compatibility limits while operating reliably on long motor cables. This role makes it suitable for cabinet layouts where several axes share one incoming power source and require controlled line-side filtering.

In drive cabinets, the unit manages a continuous phase current of 51 A and can withstand short peaks up to 77 A during dynamic regeneration or other brief high-load events. It fulfills EMC category C3 according to DIN EN 61800-3, which applies to industrial networks with dedicated transformer feeds. The housing has a width of 100 mm, a depth of 262 mm, and a height of 440 mm, allowing placement beside power modules without unnecessary crowding. With a mass of 15 kg, the unit supports the internal magnetic components needed to handle harmonic energy in demanding drive systems. The filter also supports installations of up to 15 axes with a combined motor-cable reach of 900 m, helping limit common-mode currents along extended cable runs.

Version 1 of the design keeps internal losses below 91 W, which helps limit the heat that must be removed from the cabinet. Line terminals accept conductors sized to the IEC cross-section of 16 mm² or the North American equivalent of AWG 6, allowing the supply connection to match regional wiring practice. The mounting plate is fastened with M6 × 16 hardware tightened to a maximum of 8.6 N·m, while the separate control-ground terminals are tightened to 2.3 N·m to maintain secure bonding. These connection points help keep the electrical path stable under normal vibration and continuous operation.