Product Description:

The RZS02.1-6-008 belongs to the RZS Sinusoidal Filters series manufactured by Bosch Rexroth Indramat. This passive line component is installed between a pulse-width-modulated drive and an induction or synchronous motor to smooth the current waveform and reduce motor voltage stress. By softening the steep edges of the inverter output into a near-sinusoidal waveform, it helps limit insulation wear, lower acoustic noise, and reduce electromagnetic emission within an automation cell.

The filter accepts 3 x AC 380 ... 400 V line-to-line input, and safe operation is maintained within a tolerance of ±15 % to accommodate normal supply variation. Its passband covers 0 … 200 Hz, so it can support low-speed operation and full motor base frequency while preserving waveform quality across the usable range. Internally tuned inductive and capacitive elements are rated for a pulse frequency of 8 kHz, which suits modern IGBT inverter outputs and helps attenuate differential-mode voltage spikes before they reach the motor terminals. Classified as a Sinusoidal filter, the device minimizes dV/dt and helps protect connected cable insulation and motor bearings from premature aging.

The unit is assigned Design Version 1 under Product Line 02, and those codes identify its layout and connection arrangement for cabinet installation. Its mechanical layout and terminal orientation are suited for cabinet integration, which helps keep wiring orderly when the filter is placed between the inverter and the motor cable run. This version provides the impedance profile intended for standard 380 to 400 V networks, supporting compatible servo or vector converters in fixed cabinet installations. The dimensional and thermal format remains consistent within the series, so the filter can be applied where predictable sine-wave conditioning is required.