Product Description:

The industrial mains filter HNF01.1B-A100-E0740-N-480-NNNN belongs to the HNF Mains Filters series produced by Bosch Rexroth Indramat. It is intended for installation between the plant's three-phase supply and servo inverters so that conducted radio-frequency noise is reduced before it can propagate onto facility wiring. This type of filter is used where high-speed switching in the inverter could otherwise place unwanted high-frequency interference back onto the mains connection. By placing the filter at the front end of a drive package, the system can meet electromagnetic compatibility limits without changing the downstream power electronics or motor cabling.

The unit carries a protection rating of IP00, meaning the choke and capacitor network are supplied as an open-frame assembly that must be mounted inside a closed control cabinet. Because the enclosure is open, safe installation depends on cabinet-level guarding and proper spacing from other live components. Rated mains input is 3 × AC 400–480 V, so it can be wired directly to typical European and North American industrial distribution systems. Line frequency compatibility extends across 50/60 Hz, allowing the same hardware to be used worldwide. The unit is built to match the electrical characteristics of compatible converters, and Series code 01 marks the first mechanical platform for this product family and sets the terminal orientation and footprint dimensions.

The electromagnetic performance is categorized as C1, a classification verified against DIN EN 61800-3. This means the filter is suitable for installations that require low emitted disturbance in commercial environments, especially on the supply side of a drive system. The unit is Design Version 1, indicating the initial production revision, and it is intended for feeding devices only rather than for protecting standalone consumer loads. It is therefore suited to use with frequency converters, servo drives, and similar equipment that draws pulsed current from the mains.