FC-301P30KT4131H8591 Danfoss
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The Danfoss FC-301P30KT4131H8591 is part of the VLT FC 301 Automation Drives series and provides a power rating of 30 kW or 40 HP. It operates on a three phase 380 - 480 VAC mains voltage with a supply frequency of 50/60 Hz. The drive supports output frequencies from 0 to 590 Hz and allows for shielded motor cables up to 50 meters and unshielded cables up to 75 meters.
Internal Product Review
The FC-301P30KT4131H8591 is a Danfoss VLT FC 301 automation drive rated for 30 kW and designed for 380 - 480 VAC operation. From a technical standpoint, the 0–590 Hz output frequency and >0.98 displacement power factor support efficient, stable motor control, making this drive a strong choice for industrial automation.
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Product Description:
The FC-301P30KT4131H8591 is an AC variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. Categorized under the VLT AutomationDrive FC product group, it converts fixed-frequency line power into a variable-voltage, variable-frequency signal that allows controllers to match motor speed to real-time load requirements. By eliminating the need for mechanical throttling and slip devices, the drive provides precise motor regulation for pumps, fans, conveyors, and other material-handling systems used in industrial automation.
This model supplies up to 30 kW of continuous electrical power, corresponding to a mechanical output capacity of 40 HP. It accepts an input voltage range of 380–480 VAC from a three-phase power supply. The drive accommodates utility grids operating at 50/60 Hz with variations of ±5% around the nominal line frequency. Its output frequency can be adjusted across a range of 0–590 Hz, while a separate flux-mode range of 0–300 Hz supports low-speed torque control. The inverter reproduces between 0% and 100% of the incoming voltage at its output terminals and tolerates a mains imbalance of up to 3.0% without derating. The power stage permits one energization per minute to remain within the allowable surge limit.
The displacement power factor is greater than 0.98, and the true power factor reaches at least 0.9 at full load, helping reduce reactive demand on the supply network. Cable installation permits up to 50 m of shielded motor cable or 75 m of unshielded motor cable, providing flexibility for different enclosure and machine layouts. With a 50 m motor cable, the output has a voltage rise rate of 1.978 kV/µs and a peak voltage of 1.260 kV, which should be considered when selecting suitable motor insulation. Frequent supply cycling should be avoided because the drive is limited to one power-up per minute. A mains imbalance monitor, power-factor tracking, and a 3.0% voltage-symmetry threshold protect the converter when line conditions move outside the permitted range.
