Product Description:

The HNS02.1A-Q150-R0023-A-480-NNNN is a mains filter manufactured by Bosch Rexroth Indramat and delivered within the HNS Mains Filter series. In a multi-axis drive installation, this unit is connected between the plant's three-phase supply and the associated supply module to attenuate high-frequency switching noise and keep conducted emissions within legal limits for industrial automation equipment. This placement helps reduce line-side interference before it reaches the rest of the power system. Heat produced by core and winding losses is removed through natural convection, so forced airflow is not required.

The filter is paired with choke HNL02.1R-0980-C0023, so its impedance profile matches the converter's pulse currents and helps protect the network side from differential-mode disturbances. Mechanical integration is straightforward because the required cabinet depth is only 300 mm, allowing the unit to align with standard enclosure rails without excessive panel overhang. The housing has an overall height of 352 mm, a width of 80 mm, and an enclosure depth of 265 mm, which sets the space needed for mounting and front ventilation clearance while still permitting neighboring devices. For isolation and service access, a switch-disconnector is integrated so upstream breakers do not have to be opened for routine work.

On the electrical side, the filter is intended to operate with the supply module HMV02.1R-W0015, creating a matched line interface that meets leakage-current requirements for machine tool cabinets. One filter can serve drives controlling up to 12 axes, which allows multi-channel converters to share a single EMC connection. Motor leads with cumulative lengths up to 150 m can be used without exceeding the filter's voltage-drop limits, supporting machines with long cable runs to gantry or portal axes. The filter also accommodates inverter carrier settings of 4/8/12/16 kHz without resonance, maintaining stable attenuation across the switching patterns used by the drive.