Product Description:

The HMF01.1A-N0K2-D0095-A-500-NNNN is a three-phase motor filter built by Bosch Rexroth Indramat for the HMF Motor Filters series. Installed between an inverter and its servo motor, the filter suppresses voltage spikes and common-mode noise that can damage insulation or cause electromagnetic interference on factory networks. By limiting high-frequency components, it protects cable runs and extends motor service life in industrial automation cells that rely on fast-switching drives.

This model can deliver a continuous line current of 95 A, allowing it to track the full rated load of most compact servo axes without thermal derating. A specific inductance of 3 x 78 µH shapes the output waveform so the motor sees smoother dV/dt during each switching cycle. Under transient conditions, the filter withstands a maximum output voltage of 1.2 kV, matching the insulation class of modern drive cables. Internal copper and core losses sum to 190 W, and that heat must be removed by cabinet airflow to prevent saturation. The assembly is 225 mm wide and 270 mm deep, which helps with cabinet layout, while 6 Nm of terminal torque helps secure conductors against vibration.

For short bursts such as acceleration peaks, the unit tolerates a maximum output current of 150 A. It remains effective up to a switching frequency of 4 kHz, so high-resolution PWM drives can operate without excessive ripple. A mass of 20 kg gives the filter a solid mounted presence on panels or plates. Power enters and leaves through two flexible conductors of 2 x 25 mm², while rigid feeders up to 50 mm² (0 AWG) are supported at the line side. The housing stands 315 mm tall, and mounting slots positioned 257 mm high and 175 mm wide simplify cabinet layout. When paired with motors running at up to 200 Hz, the component keeps common-mode voltage within safe limits for long cable runs.