FC-301P18KT4131B3696 Danfoss
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The Danfoss FC-301P18KT4131B3696 is part of the VLT FC 301 Automation Drives series and features a power rating of 18.5 kW with 25 horsepower. This drive operates on three phase power with a mains voltage of 380 to 480 VAC, and supports output frequencies from 0 to 590 Hz. It includes four digital inputs at 0 to 24 V DC, one relay output, and an analog output range of 0 or 4 to 20 mA.
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Product Description:
The FC-301P18KT4131B3696 is an AC variable-frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. The unit serves as a mains-powered inverter that modulates motor voltage and frequency so plant controllers can match pump, fan, or conveyor speed to real-time demand. By converting constant utility power into an adjustable three-phase output, it helps reduce energy consumption and mechanical wear in automated machinery. Its regulated output also supports controlled acceleration and deceleration, reducing mechanical stress on connected equipment during routine operation.
The inverter delivers a continuous motor output of 18.5 kW, which corresponds to 25 HP when imperial units are required. It accepts a utility supply of 380–480 VAC with three-phase power, allowing direct connection to common industrial mains. The control section tracks a line frequency window of 50/60 Hz ±5% and synthesizes an adjustable output that can reach 0–590 Hz for high-speed processes. Motor voltage is regulated from zero to 100 percent of the incoming supply, while flux mode operation covers 0–300 Hz for constant-torque duty. Shielded motor cables may extend up to 50 m, while unshielded runs may reach 75 m, providing flexibility when positioning the drive cabinet relative to the motor. Startup is limited to one power-up per minute to protect the DC-link capacitors from excessive inrush current.
For system interaction, the drive provides four digital inputs, a programmable 0/4–20 mA analog output, and a single relay contact for status signaling. The digital channels accept 0–24 V DC logic, enabling direct wiring to typical PLC output modules and other industrial control devices. When loaded near rated power, the displacement power factor remains above 0.98, and the true power factor is at least 0.9, so upstream conductors carry minimal reactive current. The analog output can transmit a proportional process or operating signal to compatible monitoring equipment. The relay contact can report drive status to an external control circuit without requiring an additional interface module.
