FC-301P18KT2131B5828 Danfoss
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The Danfoss FC-301P18KT2131B5828 is part of the VLT FC 301 Automation Drives series and supports three phase power with a power rating of 18.5 kW or 25 HP. It operates with a mains voltage range of 200 to 240 VAC and features an output frequency limit of 590 Hz. The drive provides a 12-bit analog output resolution and allows for shielded cable runs up to 50 meters and unshielded up to 75 meters.
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Product Description:
The FC-301P18KT2131B5828 is an AC variable frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series within the VLT AutomationDrive FC product group. By modulating the input waveform, the unit governs induction motor speed and torque in conveyors, pumps, and other process equipment used in industrial automation. The 301 series identifier places the drive within the FC-301 family and aligns its mechanical dimensions with related models, supporting consistent cabinet layouts across multiple installations.
It delivers a continuous mechanical output of 18.5 kW, or approximately 25 HP, when supplied with 200–240 VAC using three-phase power. The inverter produces carrier-controlled output frequencies up to 590 Hz, while closed-loop vector control tracks motor flux up to 300 Hz for high-speed operation. Output voltage is maintained at 100 percent of the incoming line voltage. The brake chopper becomes active at 390 V DC, and a bus overvoltage alarm follows at 405 V DC. A 12-bit analog output supplies proportional status feedback, while two transistor outputs provide 40 mA at 32 kHz for external relay or counter inputs. The line imbalance limit is 3 percent of the rated supply, and start sequences are restricted to one power-up per minute to protect capacitors and contactors.
The displacement power factor is greater than 0.98, and the true power factor remains at least 0.9, minimizing reactive demand on distribution panels. The drive supports shielded motor leads up to 50 m and unshielded conductors up to 75 m without additional output reactors. This difference allows cable selection to account for electromagnetic compatibility requirements and the physical routing available within the installation. Control algorithms adjust carrier modulation within the stated flux and frequency limits to prevent synchronous overcurrent during rapid acceleration or regeneration. The available analog and transistor outputs also allow operating status to be transmitted to external control devices without adding separate signal-conversion hardware.
