Product Description:

The RZM01.1-5-440 is a motor filter manufactured by Bosch Rexroth Indramat and supplied under the RZM Motor Filters series. Installed between a drive and its matched motor, the filter limits conducted noise. It also shapes the voltage waveform so that insulation stress, electromagnetic interference, and reflective wave effects remain within acceptable margins for industrial automation equipment.

The filter accepts a line-to-line connecting voltage of 3 x AC 500 V ±10%, supporting typical three-phase supplies while allowing a ten percent tolerance for utility fluctuation. Power enters through the input terminals designated U1, V1, W1, providing a clear wiring reference during installation. When the drive switching frequency is held at 4 kHz, the device allows a combined motor-cable length of 200 m, and impedance remains low enough to maintain pulse fidelity within that limit. At that carrier frequency, the filter handles drive output frequencies up to 100 Hz, enabling standard induction-motor speeds without excessive voltage rise times. Additionally, the unit provides 50 % shielded line reduction, cutting common-mode emissions and reducing the burden on downstream EMC measures.

On the load side, filtered power is delivered through the output terminals marked U2, V2, W2, keeping phase identification consistent from drive to motor. If the carrier frequency is increased to 8 kHz, the permissible motor-cable length decreases to 120 m, a tradeoff that balances switching losses against reflected-wave control. Under this higher switching rate, the filter still supports motor fundamental frequencies up to 200 Hz, making it suitable for high-speed spindle or servo applications that demand extended electrical bandwidth. The RZM Motor Filters series uses Design 1 and Line 1 to identify the mechanical format and internal coil arrangement.