Product Description:

The RZM01.1-5-108 is a passive output filter manufactured by Bosch Rexroth Indramat for the RZM Motor Filters series. Installed between an inverter and a connected servo or induction motor, it smooths steep voltage edges and reduces conducted emissions during pulse-width-modulated operation. This helps limit stress on motor insulation and supports cleaner electrical behavior at the motor terminals. Because the unit works in the drive output path, its effect is focused on the waveform sent from the inverter to the motor.

This filter accepts a line-to-line supply of 3 × AC 500 V ±10 %, allowing operation on typical 460 V systems while staying within the stated voltage tolerance. It is rated for a continuous phase current of 108 A, and that value is maintained when the carrier frequency is set to 4 kHz. If the switching frequency is raised to 8 kHz, the continuous current is limited to 80 A because of additional internal losses. Those losses appear as a heat output of 440 W, so the installation must provide adequate ventilation or heat dissipation to keep operating temperature within range. This operating behavior makes the filter suitable for drive systems where switching frequency directly affects thermal loading.

The unit is identified as Design 1 in Line 1. These codes indicate the first mechanical and electrical arrangement used for this filter type, including its assigned terminal layout and impedance profile within the series. In use, the filter is intended for compatible drive systems that need output smoothing without active electronics. Its role is limited to passive filtering at the inverter output, so it functions as part of the motor connection path rather than as a control device. This arrangement supports installations where reduced motor-side electrical noise is required.