Product Description:

The FC-301P37KT2134L2678 is an AC variable-frequency drive manufactured by Danfoss for the VLT FC 301 Automation Drives series. It belongs to the VLT AutomationDrive FC product group and carries the 301 series identifier used across the platform. In automated plants, the device converts fixed mains power into a pulse-width-modulated output so that PLCs can vary induction motor speed, torque, and direction without mechanical throttles. This capability allows precise regulation of conveyors, pumps, and material-handling axes that must maintain repeatable speeds under dynamic loads.

At the input, the drive accepts a line voltage range of 200–240 VAC. Its continuous input current of 130 A is rectified before entering the DC link. On the output side, the inverter continuously supplies 143 A, supporting motors with outputs up to 37 kW under nominal conditions. Frequency synthesis reaches a maximum of 590 Hz, enabling high-speed spindle operation while still providing low-frequency torque for heavy starts. These electrical limits make the unit suitable for mid-power applications that require a balance of space, efficiency, dynamic response, and thermal management.

Heat dissipation is 1400 W, so panel ventilation must remove that heat to keep semiconductor temperatures within the permitted range. The control section manages optimum motor magnetization at frequencies up to 300 Hz. An overvoltage alarm activates at 410 V DC to protect the IGBT bridge from line surges. A brake chopper connects to the 390 V DC link to absorb regenerative energy during rapid deceleration. Installation permits up to 50 m of shielded motor cable or 75 m of unshielded motor cable, while limiting power-up cycles to once per minute protects the DC capacitors from inrush stress. Two digital outputs and one relay output provide status signaling, and the unit is designed for three-phase power networks commonly used in industrial distribution panels.