HMF Motor Filters

Bosch Rexroth IndraDrive HMF Motor Filters are motor-side output filters used to condition the PWM voltage supplied from compatible drive controllers to connected motors. The HMF series is selected according to the drive system’s installation layout, filter category, motor-frequency range, and switching-frequency requirements. Each unit is specified by electrical ratings such as nominal current and voltage class, allowing the filter to be matched to the connected motor load and DC-bus voltage level. Available configurations also account for enclosure style and protection requirements, making the series adaptable to different cabinet or machine installation conditions. By filtering the drive output before it reaches the motor, HMF filters help support cleaner motor-side electrical behavior and improve integration in IndraDrive applications where output waveform conditioning is required.