Product Description:

The FC-301PK55T2134L2176 is a variable frequency drive built by Danfoss for the VLT FC 301 Automation Drives series. As a compact AC inverter, it converts fixed-frequency mains power into a regulated output for induction or permanent-magnet motors. The drive is suitable for conveyors, pumps, and other general machine automation tasks that require adjustable speed and torque. It operates from a three-phase supply of 200–240 VAC, allowing direct connection to low-voltage factory distribution systems without an autotransformer.

Its nominal electrical output is 0.55 kW, making the inverter suitable for fractional-kilowatt machinery that requires continuous, adjustable torque. During operation, the converter draws 3.2 A from the mains and delivers 3.5 A to the motor terminals. These current values apply to the input and output sides of the converter, which operate with different voltage and waveform characteristics. Frequency modulation is available up to 590 Hz, enabling oversynchronous motor speeds when the connected equipment permits them. A 40 mA digital output can report operating status to a PLC, while a minimum true power factor of 0.9 helps limit reactive power draw. The design tolerates a phase imbalance of 3.0% and permits shielded motor cables up to 50 m long without exceeding the stated electromagnetic compatibility limits.

The output power corresponds to 0.75 HP, and the inverter has an efficiency of 0.95 with an IE2 energy classification. When operating at its load limit, the unit dissipates 42 W as heat. Forced ventilation is generally unnecessary when adequate clearance is provided and the surrounding air remains below 45 °C. The drive can maintain full current at altitudes up to 1000 m above sea level. Operation above this altitude requires derating to compensate for the reduced air density and its effect on cooling. The three-phase output supplies balanced motor current for stable torque production in light industrial machinery.