FC-301P55KT4131G0066 Danfoss
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The Danfoss FC-301P55KT4131G0066 is part of the VLT FC 301 Automation Drives series and operates on three phase power at 380 to 480 VAC. It provides a rated power of 55 kW or 75 horsepower and supports a maximum output frequency of 590 Hz. The drive is rated class IE2 for energy efficiency and functions at ambient temperatures up to 45 degrees Celsius without derating.
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Product Description:
The FC-301P55KT4131G0066 is an AC variable frequency drive produced by Danfoss for the VLT FC 301 Automation Drives series. The device belongs to the VLT AutomationDrive FC product group and converts fixed-frequency factory mains into a pulse-width-modulated output that allows PLCs to govern motor speed and torque in automated conveyors, pumps, and fans. By providing closed-loop regulation inside a compact enclosure, the drive supports precise process control and improved electrical efficiency across industrial installations.
The inverter delivers a nominal output of 55 kW, equivalent to 75 hp, when supplied with 380–480 VAC at its input terminals. It is designed for three-phase power networks and can raise the output frequency to 590 Hz, allowing high-speed induction or permanent-magnet motors to operate above base speed. Series identifier 301 links the unit to compatible keypad and fieldbus accessories. A torque rise time of 10 ms under the VVC+ control scheme provides a fast current response. Line symmetry must remain within a maximum phase imbalance of 3.0% to avoid excessive rectifier ripple. The drive maintains a true power factor of at least 0.9, reducing reactive loading on upstream switchgear.
The drive attains the IE2 efficiency class and can supply full current at an ambient temperature of 45 °C. Above that temperature, derating applies up to the allowable limit of 55 °C. Continuous operation is permitted at altitudes up to 1000 m before the available cooling capacity decreases. For heavy starts and jam recovery, the drive delivers 160% of rated torque for 60 seconds. Shielded motor leads may be up to 50 m long, while unshielded leads may be up to 75 m long. These cable allowances permit separation between the inverter and motor without exceeding applicable cable-capacitance limits.
