Product Description:

The RZM01.1-6-350 is a filter unit supplied by Bosch Rexroth Indramat as part of the RZM Motor Filters series. Installed between a drive inverter and an induction or synchronous motor, the device shapes the output waveform so that voltage transients are suppressed and cable-borne electromagnetic emissions are minimized. This helps protect motor insulation, reduces stress on long motor leads, and supports plant EMC targets in automated production lines and other high-duty motion systems. By smoothing the steep PWM edges produced by the inverter, it helps limit overvoltage peaks at the motor terminals and lowers interference along the cable run.

In operation, the filter accepts a 3-phase 380–400 VAC ±15 % input voltage, allowing it to match the supply ranges common to many industrial plants. Once energized, it can conduct a continuous 350 A to the motor terminals, and that rating applies when the associated drive switches at 4 kHz during continuous operation. Current conversion inside the laminated core generates heat, so the unit dissipates 800 W and requires adequate cabinet ventilation. In enclosed panels, that thermal load should be considered along with the inverter and any braking components so airflow is not undersized. The filter also uses low series impedance, which keeps additional voltage drop across the filter low under full load and helps preserve motor terminal voltage.

When the drive’s PWM carrier is raised to 8 kHz, the permissible output drops to 280 A because faster edge rates increase core losses. The unit is built to Design 1 and produced in Line 1. These identifiers distinguish the version within the product range and keep the designation straightforward to read. It belongs to the RZM Motor Filters series and is intended for inverter systems that need dv/dt reduction between the drive and the motor in high-power installations.