24.F4.CNU-4000 KEB
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The KEB 24.F4.CNU-4000 is part of the F4 Combivert Frequency Inverters series and features a compact control mode with a U-size housing style. This inverter has a maximum rated motor power of 90 kW, a nominal output current of 180 Amps, and provides 125 kVA of nominal output power. It operates within a temperature range of -10 to 45°C and has an IP20 protection rating with a maximum relative humidity of 95 percent.
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Product Description:
The 24.F4.CNU-4000 frequency inverter is built by KEB and belongs to the F4 Combivert Frequency Inverters series. It serves as a variable-speed AC drive that converts fixed-frequency mains power into a regulated output for induction or synchronous motors used in automated machinery, conveyors, and process equipment. By modulating voltage and frequency, it allows controllers to match motor speed to load demand, reducing energy use and mechanical stress in industrial automation cells.
The inverter is supplied with the Compact control mode, meaning the control electronics and power section share one enclosure, and the parameter set is accessed directly through the front keypad or standard fieldbus interface. Its cabinet footprint follows the U-size housing style, allowing it to fit Combivert panels that accommodate this dimensional code. Electrical sizing is oriented toward heavy-duty motors. The unit supports a maximum rated motor power of 90 kW, delivers a continuous output current of 180 A, and provides 125 kVA of apparent power at the output terminals. These ratings indicate the drive’s thermal and semiconductor limits, supporting proper cable selection, protective device sizing, and motor matching.
The inverter supports operation at ambient temperatures from -10 to 45 °C, aligning the heat sink capacity with typical factory conditions. Component conformal coatings and airflow paths remain effective at relative humidity levels up to 95% without condensation, so the unit can operate in humid production areas when moisture is controlled. A protection class of IP20 provides protection against accidental contact with internal parts but requires installation inside a suitable control cabinet. The enclosure does not protect the inverter against water ingress, so the surrounding cabinet must provide adequate protection for the installation area. Communication with supervisory controls is handled through the standard fieldbus option, allowing the inverter to exchange operating commands and status data without additional communication modules.
