Product Description:

The RZM01.1-6-010 belongs to the RZM Motor Filters series produced by Bosch Rexroth Indramat. This motor-side filter is installed between an inverter and its synchronous or induction motor to suppress high-frequency voltage peaks and dV/dt stress that arise from pulse-width-modulated drive outputs. By reducing reflected waves on the motor leads, it limits insulation wear, lowers bearing currents, and helps the connected machine meet EMC objectives in industrial automation cells.

The filter is rated for a supply of 3-phase 380 to 400 VAC ±15%, so it can be wired directly to common European plant power without a step-down transformer. Under continuous conditions, its windings and ferrites carry a 10 A maximum rated current, which matches typical motors in the 4 kW class. When the drive’s carrier frequency is set to 4 kHz, the filter still handles a full 10 A at 4 kHz. At higher switching speeds of 8 kHz, its thermal rating is derated to 7.5 A at 8 kHz. The internal impedance network dissipates a steady-state 120 W power loss, a value used to size enclosure ventilation so that hotspot temperatures remain within component limits. Because the filter inserts only passive inductance and capacitance, it introduces no additional control latency between the inverter and motor, but its current and loss figures must be considered during cabinet thermal calculations.

The unit is categorized as Design 1 on Line 1, indicating a standardized mechanical outline and terminal arrangement. The device is formally listed as a Motor Filter, so its impedance curve is optimized for the steep voltage edges typical of modern IGBT drives rather than for sinusoidal mains distortion. Installation guidelines recommend mounting the filter as close as practical to the inverter output terminals to minimize parasitic cable inductance.