FC-301P75KT4131H3773 Danfoss
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The Danfoss FC-301P75KT4131H3773 is part of the VLT FC 301 Automation Drives series and operates on three phase power with a rated power of 0.75 kW. It accepts 380-480 VAC mains voltage and features an integrated EMC RFI filter. The drive achieves an efficiency of 0.96 at rated current and supports a maximum output frequency of 590 Hz.
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Product Description:
The FC-301P75KT4131H3773 is an AC variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. Housed within the VLT AutomationDrive FC product group, the unit processes three-phase power to supply adjustable voltage and frequency to induction motors used in conveyors, pumps, and ventilation fans. This conversion allows precise speed control while maintaining process stability in industrial automation. The drive can regulate motor speed in response to changing process demands, reducing unnecessary mechanical output during partial-load operation. Its three-phase architecture supports common industrial motor applications that require controlled acceleration, deceleration, and continuous speed adjustment.
Electrical performance centers on a rated output of 0.75 kW, delivered when the drive is supplied with an input of 380–480 VAC. The inverter can generate a carrier-limited output frequency of up to 590 Hz, while a flux-mode ceiling of 300 Hz supports field-weakening operation at high motor speeds. Full-load efficiency reaches 0.96, consistent with the IE2 energy-efficiency class, and the displacement power factor exceeds 0.98; the true power factor is at least 0.9. Input phase imbalance must remain below 3.0% to prevent excessive stress on the DC link. The RFI section includes an integrated EMC filter that reduces conducted emissions on the mains supply. Operation is limited to two power-ups per minute so that the inrush-current components have adequate time to cool between starts.
The control platform accepts temporary overloads of 160% for 1 minute per 10 minutes, enabling acceleration of high-inertia loads without requiring a larger enclosure. Continuous current is available up to an ambient temperature of 45 °C, while operation below 0 °C requires cabinet heating. Installation at altitudes up to 1000 m requires no derating, after which the available thermal margin decreases. Power loss at rated load is limited to 46 W, which reduces the ventilation demand inside the control panel. The protective design meets overvoltage category III requirements for industrial distribution systems. These protections allow the drive to operate on typical factory power networks while helping shield its internal circuits from transient voltage conditions.
