Product Description:

The HNF01.1A-F240-R0065 is a mains input filter produced by Bosch Rexroth Indramat for the HNF Mains Filters series, design version 01. The unit is installed ahead of IndraDrive power modules to suppress conducted emissions and return energy from regenerative drives back to the supply. By operating in EMC category C3 according to DIN EN 61800-3 and within overvoltage category III, it provides the electromagnetic compatibility and insulation clearances required for industrial distribution networks. This arrangement helps limit line-borne interference on shared plant power systems while supporting drive applications that feed braking energy back toward the mains.

It carries a continuous line current of 65 A, which is the maximum RMS load the filter can conduct without saturating its core elements. Internal losses at that load produce a thermal output of 163 W, so the cabinet must provide enough free space for steady heat dissipation around the module. The housing measures 150 mm wide, 440 mm high, and 262 mm deep, which allows installation in standard 600 mm deep control cabinets while leaving room for cable routing. Class 3C1 chemical resistance protects the varnished components from light industrial contaminants, and climatic class 3K3 supports operation in locations with elevated humidity and normal indoor industrial temperatures.

The assembly weighs 25 kg, so the enclosure structure must support the mass of the filter during operation and mounting. It is intended for systems with up to 6 axes and cable lengths reaching 240 m, allowing one filter stage to support multi-axis regenerative drive groups. Operation is permissible at elevations up to 4000 m, with full current available without derating up to 2000 m above sea level. The device is intended for regenerative devices only, and its conductor layout and choke configuration are arranged to handle energy flow back toward the supply without causing excessive DC-bus voltage rise.