Product Description:

The RZS02.1-6-064 is a line-side passive component produced by Bosch Rexroth Indramat within the RZS Sinusoidal Filters series. It is installed between the output stage of an inverter drive and the connected induction or synchronous motor to transform the pulse-width-modulated voltage into a near-sine waveform. By lowering voltage steepness and radio-frequency emissions, the filter protects motor insulation, minimizes cable-borne interference, and helps drive systems comply with electromagnetic compatibility limits in industrial automation cells. The filter is used on the drive output side rather than the line input side, so its effect is applied directly to the motor supply. This smoother output also reduces dv/dt stress at the motor terminals and helps limit reflected-wave effects on longer cable runs.

Its input network accepts a three-phase supply of 3 x AC 380–400 V, and operation remains stable when that voltage deviates within ±15% of nominal, allowing the same unit to serve in facilities subject to moderate line-voltage fluctuations. The winding inductance and capacitor matrix are rated for a continuous fundamental component anywhere in the 0–200 Hz range, so the load can be driven at extended low-speed or overspeed points without saturating the core. Internally, the filter is tuned for inverter carriers up to 8 kHz, suppressing high-frequency edges that otherwise cause differential motor voltage stress. When the drive commands its highest fundamental, the assembly handles a 200 Hz output without exceeding thermal limits. This operating range supports motor applications that run well below base speed as well as setups that require elevated output frequency.

The remaining identifiers clarify the unit configuration. Design version 1 confirms the mechanical layout used for wiring lugs and mounting holes, while product line 02 places the unit in the second generation of passive drive components. The declared product type is a Sinusoidal filter, which distinguishes it from du/dt chokes that provide only partial smoothing. This makes the unit suitable where a smoother motor waveform is required than a simple output choke can provide. Its impedance, loss profile, and resonance behavior are matched to current-controlled servo drives from the same vendor.