FC-301P75KT4131B8634 Danfoss
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The Danfoss FC-301P75KT4131B8634 is part of the VLT FC 301 Automation Drives series and operates on three phase power with a mains voltage range of 380 to 480 VAC. This drive is rated for 100 horsepower and 75 kW, featuring two programmable digital outputs and one relay output. It supports a maximum output frequency of 590 Hz and allows a maximum shielded motor cable length of 50 meters.
Internal Product Review
FC-301P75KT4131B8634 is a Danfoss VLT FC 301 automation drive rated for 75 kW and 100 hp. Three-phase 380 to 480 VAC input supports dependable integration in demanding motion and process installations. High-speed control capability stands out with 590 Hz maximum output frequency and 300 Hz max flux frequency.
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Product Description:
The FC-301P75KT4131B8634 is an AC variable frequency drive manufactured by Danfoss within the VLT FC 301 Automation Drives series. Installed between a three-phase power supply and an induction motor, it produces a variable voltage and frequency waveform that allows a PLC to regulate motor speed according to load demand. The drive supports automated conveyors, pump stations, and fan arrays that require controlled acceleration, adjustable operating speeds, or reduced energy consumption under partial loads.
The inverter has a motor output rating of 75 kW, which corresponds to a mechanical shaft capability of 100 hp. It accepts three-phase input from 380–480 VAC networks and can produce output frequencies up to 590 Hz. The flux frequency is limited to 300 Hz to keep motor magnetization within suitable operating limits. This frequency range supports high-speed operation for centrifugal equipment and substantial speed reduction when the process requires lower output. Only one power-up cycle per minute is permitted to protect the DC-link capacitors from excessive electrical stress. Motor leads may use shielded cable up to 50 m long or unshielded cable up to 75 m long without exceeding the applicable pulse-width modulation rise-time limits.
The control interface provides one analog output with 12-bit resolution, two programmable digital outputs, and one Form C relay for status signaling. Logic terminals can sink up to 40 mA, while the auxiliary connections supply 10 V at 15 mA for potentiometer references and 24 V at 200 mA for sensor power. These connections support reference signals, external sensors, and operating-status communication without requiring separate low-power supplies for every connected device. Continuous full-load operation is supported at elevations up to 1,000 m. At elevations above that limit, the drive can operate at up to 3,000 m when output current and switching losses are proportionally reduced. The available analog, digital, and relay connections allow the drive to exchange commands and status information with a machine controller while maintaining a compact control arrangement.
