Product Description:

The RZS02.1-6-135 sinusoidal filter is produced by Bosch Rexroth Indramat and belongs to the RZS Sinusoidal Filters series. The unit sits between a PWM inverter and the motor, reshaping steep-edged drive pulses into a smoother sine wave so cable stress, motor insulation wear, and acoustic noise are reduced in industrial automation cells. By lowering dv/dt at the motor terminals, it supports long cable runs and helps meet electromagnetic compatibility targets in multi-axis machine tools and material-handling lines.

Electrically, the filter is rated for a line connection of 3 x AC 380 … 400 V, permitting installation on standard 400 V systems, and it remains functional within a tolerance band of ±15 %, giving headroom for supply fluctuations common to large plant grids. Its core network is tuned to cover 0 … 200 Hz, so the same assembly can accompany variable-frequency drives that control low-speed positioning or high-speed spindles without retuning. Internal inductors are sized for a carrier or pulse frequency of 8 kHz, which is a typical switching rate for modern IGBT converters. Thermal dissipation is limited to 400 W, so cabinet ventilation must remove that continuous loss during operation.

For load handling, the filter carries a nominal phase current of 135 A, matching converters in the 090 power class and allowing proportional motor current on the output side up to its specified upper frequency. The identifier 6 in the type code corresponds to wiring cross-sections, while the design index 1 indicates mechanical dimensions from the first manufacturing release. The product line code 02 places the module among second-generation low-dv/dt accessories used with compatible frequency inverters. This arrangement supports consistent electrical integration with matched drive and motor combinations.