Product Description:

Bosch Rexroth Indramat manufactures the RZF02.1-4-045 in its RZF Line Filters series. Classified by the company as a radio interference filter, the unit is installed between an inverter and the mains to attenuate conducted electromagnetic noise in automated machinery. Within the internal naming system the filter belongs to line 02 and carries design number 1, giving installers a reference for physical layout and terminal arrangement that remains consistent across comparable frame sizes in the series.

The electrical ratings match the demands of medium-size frequency converters that fall inside the 22 – 45 kW power class. Acceptable supply levels span 3 × AC 380 … 480 V with a tolerance of ±10 %, and the filter supports grids that operate at 50/60 Hz. Current capability varies with the drive’s switching frequency: up to 90 A is available when the pulse pattern is 4 kHz, the allowable draw drops to 66 A at 10 kHz, and a further reduction is specified for higher carrier settings. These staged limits protect the filter core from excess heating caused by differential mode currents. The enclosure weighs 4.8 kg, so panel builders can plan rail support or back-plate thickness without guesswork, and the compact mass keeps transport handling straightforward during cabinet assembly.

The filter maintains correct performance in production areas that fall under environmental class 3K3; this classification covers clean indoor sites with moderate humidity and no corrosive contaminants. All live parts are finger-safe because the housing is rated IP 20. Continuous duty is permissible when the ambient temperature stays between 0 – 40 °C, after which derating must be applied to preserve winding life. A third nominal current limit of 57 A applies when the connected inverter uses a 12 kHz switching pattern, rounding out the device’s published current envelope and giving drive engineers a clear boundary for carrier-frequency adjustments.