Product Description:

The RZM01.1-6-056 is a passive line-side component produced by Bosch Rexroth Indramat for use in the RZM Motor Filters series. As a motor filter, it connects between an inverter output and an induction or synchronous motor to attenuate high-frequency voltage edges generated by pulse-width-modulated drives. By reducing differential mode noise, it lessens stress on motor insulation and limits electromagnetic interference in adjacent control equipment.

The filter is rated for three-phase supplies of 380–400 V AC with a ±15 % tolerance, matching common industrial mains in 50 Hz regions. Its maximum continuous current capacity is 56 A, enabling it to handle full-load operation of mid-frame motors without saturation of the inductive core. When the connected drive operates at an 8 kHz switching frequency, the admissible line current decreases to 43 A because core losses grow with frequency. Thermal dissipation is quantified at 220 W, a value that must be extracted by cabinet airflow or a dedicated heat sink to keep winding temperatures within specification. The hardware is identified internally as Design 1, indicating the winding arrangement and core geometry chosen for this current class.

Classified in Line 1, the filter shares mechanical dimensions and terminal spacing with other items in the same grouping, simplifying panel layout and spare-part interchange. Within the RZM Motor Filters series, its impedance curve is tuned for carrier frequencies typically used by Rexroth Indramat converters, so voltage drop stays low while common-mode spikes are suppressed. The build and material selection follow standards applied across Bosch Rexroth Indramat power conditioning products, ensuring predictable inductance over ambient temperature shifts. Specified as a Motor Filter, it is installed close to the drive cabinet rather than at the motor, allowing accessory reactors or sine-wave filters to be added downstream if further suppression is required.